Manikshaw was the person who despite being our enemy,our generals could trust. He was originally from Karachi and at Partition our Leader Jinah offered him to stay and join our army but he chose to immigrate to India. So he was well known to our generals and he was a true gentleman and a man of his words.
It was due to him that the 1971 war was far shorter and far less bloody than it could have been. Pakistan army lost interest due to Civilian casualties as mukti bahini were all civilians and Pakistan army did not want to fight them.
manikshaw brokered a deal of safe passage and safe return of our POWs and likewise safe return of Indian POWs in our custody. Manikshaw could be trusted and all that happened.
Indian army hasn't produced half a gentleman as manikshaw was and now we cannot trust any Indian general and there will no swift surrender if another war happens.