Bangladesh war records destroyed - did government want to hide the open secret?

On Sunday, 9th May, 2010, I read the headlines in the daily The Times Of India "Truth lost? Most military records of Bangladesh war missing", I instantly turned to my dad, a veteran of 1971, who was watching updates on T20 world cup. I said to him with a surprise "All 1971 war related documents were destroyed immediately after the war. It is reported in today's paper. Did you read it?". He turned his head, looked at me for a  while and turned back to watching TV saying "What else would you expect from General Arora? He had to destroy them else it would have been revealed how he distributed bravery awards and medals among his friends.".

I took it with a pinch of salt, as he had mentioned in the past that he was recommended for medal but wasn't awarded, but this aroused my curiosity. Dad had never spoken much about his war experience. I asked him why he said so? He said Maj Gen Gonsalves was GOC of 57 Mountain Div. Incidentally this div was raised by him earlier before the war. There were many recommended for recognition by Maj Gen Gonsalves but none got it. In my dad's word "Even Gen Gonsalves was surprised when the awards were declared". So they had to be destroyed to hide his (Gen Arora's) misdeed.

My dad was part of OMC (Ordinance Maintenance Company), codenamed "Elephant", and was an ammunication contact point for Mukti Bahani before the war and during the war. I asked "Were you part of Mukti Bahini? Did you go inside Bangladesh before the war started officially?". My dad replied "Yes, I started going inside Bangladesh from March 1971 onwards in civil clothes disguising as Mukti Bahini.". I asked another probing question "How many times?". He responded instantly "that's a foolish question! I was part of OMC. I went inside many a times in a day to deliver ammunition to Indian Army in disguise of Mukti Bahini.". No further probing on this.

According to dad, his core's objective were to reach Dhaka following the route - Agartala -> Akhoda -> Bhairav Bazar -> Pheri -> Dhaka.

After the war ended he stayed in Dhaka University til July 1972. His primary task then was to account, detect and destroy landmines and ammunition. For 8 months after the war ended there was no communication between him and my mom. That was indeed a difficult period for everyone!