purchase of composite dealer

sir/madam
can a comppsite dealer purchase goods like kiryana items from other state or ut and sell them in the state where he is registered. .say if i am kiryana shop keeper under composite scheme then can i buy items from a registered or unregistered dealer from chandigarh
(union terretory)and again sell them in mohali (punjab) where i am registered to earn profit and what liability or loss i need to bear...pls explain as this is very urgent for my bissiness...thanks