less pension credited during june 2011

Location/place: ashwat nagar bangalore

Name of company/service: pension military

Respected Sir, I am drawing military pension since May 1996 onwards, and my account number is 10503191501. PPO number are given under:
Service pension PPO NO : S/022970/96 and
Disability PPO NO : D/RA/1988/2006
My service basic pension is Rs.4635/- and Disability pension Rs.1755/- per month plus 51% DA plus Medical allowance Rs.300/- altogether my monthly pension is Rs.9948/- per month. But this month the bank official has credited less amount to my account, kindly verify and give my balance amount immediately.