Input tax credit..

virendra singh (Student CA IPC / IPCC) (17 Points)

11 August 2017  
I am a contractor, and I have my registered office at Bangalore karnataka and I am providing services at Tamil Nadu, so should I get separate registration in Tamil Nadu also?

and if not required then if I m purchasing inputs from Tamil Nadu only..then the seller is providing me bill as per that respective state,
so plz suggest me how to claim input tax credit.