small shops and in small towns, bargaining is a standard practice.
If you are buying in bulk you can ask for an extra discount.
Just pick up what you want, and ask the shopkeeper about the price
and then start the process of bargaining; slash the price by 50%
in the first go and then whatever he can offer best, agree to it
but mostly after a nice discussion.
Try to stay calm while you are shopping in
India. The prices in larger shops and government emporia
are usually fixed.