[Resolved]  National Saving Certificate — confusion in the information

sir,
my father took 3---( 6 year scheme) national saving certificates in the year 2000, in raichur nayabazar post office.when we went after its maturity in 2006., they confused the process..., can u please tell the right person to contact., and their phone number also.., if you can verify one of the certificates number is 6NS / 3JEE604133.., PLEASE TELL AS SOON AS POSSIBLE.,
THANK YOU SIR...,