Visa Types

Visa Types and Categories to Apply for Bangladesh

You should apply for a Bangladesh short-stay visa to make your short trip (less than 90 days). Reasons to apply for this type of visa can be tourism, visiting family or friends, business trips, medical examination or treatment, short-term education, exchange programs, and many other non-permanent nuances.

If you want to study in Bangladesh for more than 90 days (such as bachelor's, master's, doctoral, etc.) or work permanently in an institution located here, you should apply for a Bangladesh Long-stay visa, if you have official invitations or letters of acceptance from those educational and business institutions. 

Bangladesh Visa On Arrival

You can obtain a Bangladesh On Arrival visa on the border of Bangladesh. If you are from one of the eligible countries, you can also travel to Bangladesh without a visa and apply for one when you arrive. 

 

Required Documents for Bangladesh On Arrival Visa

 

1. Application Form

2. Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

3. Proof of Sufficient Funds

  • At least 500 USD or equivalent amount in foreign currency in credit card or cash

4. Return Ticket

 

Bangladesh On Arrival Visa Fee

Bangladesh On Arrival visa fee is 50 USD.

Bangladesh No Visa Required Stamp

Bangladesh No Visa Required Sticker applies to the Bangladesh origin citizens of foreign countries and their family members. There is no restriction of stay for the duration of the passport validity.

 

Required Documents for Bangladesh No Visa Required Stamp

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Required Documents Based on Conditions

  • If the applicant was born in Bangladesh:
    • Copy of the birth certificate issued by Bangladesh Authorities or
    • Copy of dual nationality certificate or
    • Equivalent education certificate issued in Bangladesh to approve the nationality
  • If the child was born in a foreign country:
    • Copy of the birth certificate of the child
    • Copy of Bangladesh passport or dual nationality certificate of the parent or
    • Equivalent education certificate of the parent issued in Bangladesh to approve the nationality
  • If the spouse was born in a foreign country:
    • Copy of a marriage certificate
    • Copy of the Bangladesh passport or dual nationality certificate of the spouse or
    • Copy of the birth certificate of the spouse or
    • Equivalent educational certificates of the spouse to approve the nationality.

7. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

8. For Minors:

  • Copy of either birth certificate/proof of adoption/custody decree if parents are divorced/death certificate of parent
  • Permit letter by parents/guardians if minor is traveling alone or permit letter by one of the guardians/parents in case of minor is traveling with one of them

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh No Visa Required Stamp

The average processing time for a Bangladesh No Visa Required Stamp is 5-20 working days. It depends on your visa application country.

 

Bangladesh No Visa Required Stamp Fee

Bangladesh No Visa Required Stamp fee 50-80 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh No Visa Required Stamp?

You will apply for a Bangladesh No Visa Required Stamp in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

Bangladesh Short-stay Visa

Bangladesh Short-stay Visa

Bangladesh Short-stay visas are designated for allowing holders to stay in Bangladesh for up to 90 days. Reasons to apply for this type of visa can be tourism, visiting family or friends, business trips, short-term training, exchange programs, short-term work, and many other non-permanent nuances. You can check all the required documents for each type of visa application, visa fees, processing time, and where to apply for a visa below.

 


 

Bangladesh Tourist Visa

Bangladesh Tourist visa is issued for applicants intending to visit Bangladesh for tourism and sightseeing. You can apply for a Bangladesh Tourist visa in order to realize your tourist activities.

 

Required Documents for Bangladesh Tourist Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
    • A round trip flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Invitation letter from Dhaka
    • It must be in English and signed
    • The letter should include the reason for travel, the relation with the applicant, address, phone number, and places to visit in Bangladesh
    • If submitting an invitation letter is not possible, present your own letter which indicates the purpose of the visit
    • Copy of passport or national identity card of the inviter (who signs the invitation letter)

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

10. For Minors:

  • Copy and English translation of either birth certificate/proof of adoption/custody decree if parents are divorced/death certificate of parent
  • Permit letter by parents/guardians if minor is traveling alone or permit letter by one of the guardians/parents in case of minor is traveling with one of them

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Tourist Visa

The average processing time for a Bangladesh Tourist visa is 3-15 working days. It depends on your visa application country.

 

Bangladesh Tourist Visa Fee

Bangladesh Tourist visa fee is 15-170 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Tourist Visa?

You will apply for a Bangladesh Tourist visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Business Visa

Bangladesh Business visa gives you the authorization to enter Bangladesh and stay here for a maximum period of your visa validity, as permitted. It permits its holder to engage in business-related activities such as attending meetings or conferences, conducting or attending the training, conducting internal audits, installing equipment, or performing other temporary services for a client, local affiliate, or branch office.

 

Required Documents for Bangladesh Business Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
    • A round trip flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Letter from the sending company in the home country
  • Invitation letter from the host company in Bangladesh
    • The letter should include the applicant’s name, purpose, and duration of the visit
    • Documents confirming the host company’s registration and license should be included

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Business Visa

The average processing time for a Bangladesh Business visa is 3-15 working days. It depends on your visa application country.

 

Bangladesh Business Visa Fee

Bangladesh Business visa fee is 15-170 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Business Visa?

You will apply for a Bangladesh Business visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Diplomatic and Official Visa

Bangladesh Diplomatic Visa applies to the head of states, diplomats, government top officials (their families) to realize diplomatic activities.

 

Required Documents for Bangladesh Diplomatic and Official Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
    • A round trip flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Note Verbale from the organization in the home country
  • Official letter issued by Government Mission (original)
    • It should indicate the applicant’s name, position, duration of travel, date of entry, and the exact purpose of the visit

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Diplomatic and Official Visa

The average processing time for a Bangladesh Diplomatic and Official visa is 3-15 working days. It depends on your visa application country.

 

Bangladesh Diplomatic and Official Visa Fee

Bangladesh Diplomatic and Official visa fee is 15-170 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Diplomatic and Official Visa?

You will apply for a Bangladesh Diplomatic and Official visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Journalist Visa

Bangladesh Journalist Visa applies to those applicants who are planning to conduct journalist activities (interviews, news) or make films/movies. Bangladesh Journalist Visa is obtained after the issuance of a clearance from the Bangladesh Authority.

 

Required Documents for Bangladesh Journalist Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
    • A round trip flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Letter of recommendation from the local company
  • Letter of request from the employer
    • It should indicate the purpose and duration of the visit
  • Invitation letter from the organization in Bangladesh
  • Declaration letter. It should include:
    • Synopsis of the purpose of the shooting, shooting location, and indefinite schedule
  • Equipment list form indicating the equipment that will be brought to Bangladesh
  • A copy of the card of press identity
  • Letter from the producer
    • It should confirm the number of participants and the purpose of the visit

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Journalist Visa

The average processing time for a Bangladesh Journalist visa is 3-25 working days. It depends on your visa application country.

 

Bangladesh Journalist Visa Fee

Bangladesh Journalist visa fee is 15-170 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Journalist Visa?

You will apply for a Bangladesh Journalist visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Missionary Visa

Bangladesh Missionary visa applies to the applicants who want to visit Bangladesh for religious purposes.

 

Required Documents for Bangladesh Missionary Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
    • A round trip flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Recommendation letter from the church in Bangladesh
  • “No objection” letter from Bangladesh Ministry of Religious Affairs

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Missionary Visa

The average processing time for a Bangladesh Missionary visa is 3-15 working days. It depends on your visa application country.

 

Bangladesh Missionary Visa Fee

Bangladesh Missionary visa fee is 15-170 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Missionary Visa?

You will apply for a Bangladesh Missionary visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

Bangladesh Long-stay Visa

Bangladesh Long-stay Visa

Even if your country is exempt from visa requirements, if you intend to stay longer in Bangladesh, you will need to apply for a long-stay visa from your home country before coming to Bangladesh. 

For any stay in Bangladesh exceeding 90 days, you are required to apply in advance for a long-stay visa. In this instance, your nationality does not exempt you from requirements.

Whatever the duration of your planned stay, the length of your long-stay visa must be between three months and one year. To extend your stay beyond the period of validity of your visa, you must apply for a residence permit at a corresponding administration.

 


 

Bangladesh Study (Long-stay) Visa

This visa is intended to permit foreign nationals to obtain a long-term visa, allowing them to stay in Bangladesh for a longer period. This visa applies to those who are admitted to the state college or state university in Bangladesh.

 

Required Documents for Bangladesh Study (Long-stay) Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Invitation letter from the recognized educational institution (college, university, school and etc.)
    • It must be attested by the Bangladesh Ministry of Education. The letter should indicate the admission of the applicant
  • Recommendation letter from the recognized educational institution (college, university, school and etc.) in Bangladesh
  • Letter of sponsorship
  • Guarantee of financial solvency certificate

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Study (Long-stay) Visa

The average processing time for a Bangladesh Study (Long-stay) visa is 3-25 working days. It depends on your visa application country.

 

Bangladesh Study (Long-stay) Visa Fee

Bangladesh Study (Long-stay) visa fee is 30-250 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Study (Long-stay) Visa?

You will apply for a Bangladesh Study (Long-stay) visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Work (Long-stay) Visa

You can work in Bangladesh by obtaining Bangladesh Work (Long-stay) visa. Visa issued is valid for the duration of the employment contract.

 

Required Documents for Work (Long-stay) Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Invitation letter from the employer in Bangladesh
  • Employment letter from the company in Bangladesh
    • It should mention the applicant’s position, full terms, conditions, and salary
  • Recommendation letter from Board of Investment, Bangladesh Investment Development Authority, or Bangladesh Export Processing Zone Authority

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Work (Long-stay) Visa

The average processing time for a Bangladesh Work (Long-stay) visa is 3-25 working days. It depends on your visa application country.

 

Bangladesh Work (Long-stay) Visa Fee

Bangladesh Work (Long-stay) visa fee is 30-250 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Work (Long-stay) Visa?

You will apply for a Bangladesh Work (Long-stay) visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Non-Government Organization (NGO) Workers Visa

If you are appointed in a Non-Government organization registered in Bangladesh, you are eligible to apply for Non-Government Organization (NGO) Workers visa.

 

Required Documents for Bangladesh Non-Government (NGO) Organization Workers Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos 
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Permission letter from NGO Affairs Burea in Bangladesh
  • Document confirming the relationship between the sending company and Bangladesh organization
  • “No Objection” certificate from NGO in Bangladesh
  • Letter of Appointment
    • It should cover the salary, job conditions, and terms in NGO

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Non-Government (NGO) Organization Workers Visa

The average processing time for a Bangladesh Non-Government (NGO) Organization Workers visa is 3-25 working days. It depends on your visa application country.

 

Bangladesh Non-Government (NGO) Organization Workers Visa Fee

Bangladesh Non-Government (NGO) Organization Workers visa fee is 30-250 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Non-Government (NGO) Organization Workers Visa?

You will apply for a Bangladesh Non-Government (NGO) Organization Workers visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

 


 

Bangladesh Investor Visa

Investors who are planning to visit Bangladesh and conduct investment/management activities in a business/commercial organization can apply for Bangladesh Investor Visa.

 

Required Documents for Bangladesh Investor Visa

 

1. Application Form

2. Two Photos

  • Two passport size photos
  • Photos should be taken in a white background

3. Passport and Copy of the Main Page of Passport

  • Passport should be valid at least 6 months
  • It also must have at least two blank pages

4. National Identity Card and Resident Permit/Visa Copy (if Your Country of Residence and Citizenship are Different)

5. Copy of Previously Issued Visas (If any)

6. Travel Itinerary

  • Flight ticket reservation
  • Hotel reservation
  • Invitation letter from the host in Bangladesh. The letter should include:
    • Copy of ID of the inviter
    • Inviter’s contact details
    • Copy of host’s residency permit

 7. Proof of Online Payment

  • Printed visa fee payment receipt

8. Proof of Purpose of the Travel

  • Recommendation letter from Bangladesh Board of Investment (BOI)
    • Additionally, the letter may be issued by the Bangladesh Ministry of Industries, Investment Development Authority, or Bangladesh Export Processing Zones Authority

9. Proof of Financial Means

  • Bank statements for the last 3 months
  • Travelers’ cheques
  • Proof of salary
  • Cash available
  • International credit card and etc.

*Additional documents can be required by the embassy.

 

Processing Time for Bangladesh Investor Visa

The average processing time for a Bangladesh Investor visa is 3-25 working days. It depends on your visa application country.

 

Bangladesh Investor Visa Fee

Bangladesh Investor visa fee is 30-250 USD. The fee may vary depending on your nationality or your country of submission.

 

Where to Apply for Bangladesh Investor Visa?

You will apply for a Bangladesh Investor visa in Bangladesh visa application centers, embassies, or consulates, whichever accepts visa applications in your country of residence. If there is none of them in your country, you need to apply to the nearest embassy or consulate to your location.

FAQ

What is the required validity of a passport for applying for a Bangladesh visa?

The required validity of the passport is at least 6 months.

Do I get my fee refunded in case of my Bangladesh Visa refusal?

No. The Bangladesh application fee covers the handling of the application, regardless of the result.

What is the local currency in Bangladesh?

Bangladeshi Taka is the local currency in Bangladesh. 100 USD equals approximately 8,462 Bangladeshi Taka.

I am from a country whose citizens do not need a visa to enter Bangladesh. Can I experience any problems at the border, while entering Bangladesh?

You must meet certain requirements to enter Bangladesh, even if you are not required a visa:

  • The purpose of your trip to Bangladesh must be plausible and comprehensible.
  • Your passport should be valid for at least 6 months
  • You must be able to finance your own living and travel costs.
  • You must hold a confirmed return flight to prove that you are prepared to leave Bangladesh before the duration of the permitted stay ends.
  • You must not pose a threat to security or public order.

Could the Embassy/Consulate request me to provide additional documents or information?

The embassy may request you to provide additional documents or information, according to your personal situation, even after you have submitted all the required documents mentioned on the official website of the Embassy/Consulate/Visa Application Center.

How many days can I stay in Bangladesh if I visit Bangladesh with No Visa Required Stamp?

There is not any time restriction. No Visa Required Stamp is valid as long as your passport remains valid.

Is presenting the evidence of possessing at least 500 USD mandatory when I get a visa on arrival?

Yes. You should have 500 USD or equivalent amount in foreign currency in credit card or cash when obtaining a visa on arrival.

Do I have to participate in the Embassy or Visa Administrative Center in person for applying for a Bangladesh visa?

It depends on your country of residence or the embassy/consulate/Visa Administrative Center’s rules and obligations. In some countries, sending your documents via courier is enough to the embassy/consulate/Visa Administrative Center.

What happens if my Bangladesh visa application is rejected?

If your Bangladesh visa application is rejected, you will be notified by your mission that your application has been unsuccessful. You will be informed of the grounds on which it was rejected and have one month to appeal the decision by writing to the Bangladesh mission. Your application will then be reconsidered. You can also apply for a visa again if your circumstances have changed.