Upvote:1
You are already aware of the visa requirements for India. Here the results of a search on IATA's Timatic, the database used by airlines to verify passenger visa and passport requirements (courtesy of Emirates):
Transit - Bhutan (BT)
Visa
Visa required.Visa Exemptions:
Nationals of Bangladesh for a maximum stay of 14 days.Transit - Nepal (NP)
Visa
Visa required.TWOV (Transit Without Visa):
Holders of confirmed onward tickets transiting on the same calendar day.Visa Issuance:
Passengers with onward tickets can obtain a transit visa on arrival for a maximum of 24 hours.
- This does not apply to nationals of Bangladesh traveling with a temporary passport, who must obtain a visa prior to travel. This does not apply to nationals of Bangladesh traveling with a temporary passport, who must obtain a visa prior to travel.