In term of supermarkets you can find 1 places (like "Bashail Bazar Beribadh").
For schools you have 1 places with "Basail High Schoo" for example.
About post offices, 1 possibilities exist (like "বাশাইল পোস্ট অফিস").
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on bproperty.