Southern Railway — rac-1 ticket not given berth inspite of vacant berth availability

Dear sir,
I had travelled from chennai to sankarankovil in 3 tier ac in train no 12661 on[protected] along with my son pnr no [protected], my son's ticket was rac-1 in b5 coach seat 39. Though there were 03 berths vacant due to passengers not turning up, the concerned ttr refused to allot those berths to rac listed passengers on priority as per the railway rules. Instead he allotted those berths to subordinates of an mla who were possessing only open unreserved tickets. When asked for an explanation he told that he is allotting them by imposing fine for each ticket as per the rules. Kindly investigate this matter and uphold the sanctity of the railways.
Regards
K. Premkumar