Death claims

Sir/madam
Mr suresh is a employees in CRPF.after his marriage within one year a complain suit against him and his parents u/s 498 A/294/506/323/34 IPC.and police arrest him and his father ,after 6 days they are relies on bail.

Suresh join his job but ,against party approach to commandment that my husband spend 6 days in jail and punished him.mr suresh suspend for three month.
Last 9 month court order to give maintenance Rs3000/pm.suresh deposit all the amount in court,but the party again suit new case to increase the amount to Rs7000/pm.
Now Mr suresh Died Dec2011 on duty at J&k.the dead body handed over to his mother at home town.
Mr suesh have no children, after suit case his wife leaving another person illegally,sowing that he is my brother. That man handle all case on behalf of his family.
My question is in CRPF record nomination was not change after his marriage, mother is 100% nominee.
In this circumstance who will be the beneficiary of mr suresh’s pension and all other death benefits.
Mother age was 61 years,Mr suresh age was 31 years.Case start from 2007
Pl advice.