Bhang is a very mild form of cannabis and is legal in india. We visited this shop and purchased some cookies which were great especially before going into the fort and into the desert!
For the person below who wrote about it not being a government authorised shop - the shop is outside a police station. It is quite publicly stating that it sells a form of cannabis. If this was illegal I would have thought they would have been closed down by now!
P.S there are two bhang shops - the one closest to the entrance to the fort is the shop you want to visit