Hello Parvez Hasan
As suggested by our Team member Maximilien before, the best for you will be to contact the Switzerland Embassy in Dhaka to get the required infos.
Swiss Embassy in Dhaka, Bangladesh
Bays Edgewater, 8th Floor
Plot 12, North Avenue
Gulshan 2
Dhaka 1212
Bangladesh
Telephone : (+880) 2 881 28 74 / (+880) 2 881 28 75
E-mail [email protected]
Website www.eda.admin.ch/dhaka
Regards
Kenjee
Expat.com Team