India Post — about nsc

Address:	Balasore, Odisha
Website:	INDIA POST NSC

I opened some nsc in balasore main post office, i already submit my full kyc, but unfortunately they make my cif another person also make my signature of a female person, now i shift a new town, but when i go to the new post office for open a new nsc they told me please go to balasore post office and change your kyc, but balasore post office staff don't listen me also the branch manager of balasore post office abuse me like non-sense word. So please guide me how can i change my kyc. No one help me in balasore br.