Indian military intelligence gave no warning of the impending Pakistan invasion. The Indian Army failed to recognize the presence of heavy Pakistani artillery and armaments in Chumb and suffered significant losses as a result.

The "Official History of the 1965 War", drafted by the Ministry of Defence of India in 1992, was a long suppressed document that revealed other miscalculations. According to the document, on September 22 when the Security Council was pressing for a ceasefire, the Indian Prime Minister asked commanding Gen. Chaudhuri if India could possibly win the war, were he to delay accepting the ceasefire. The general replied that most of India's frontline ammunition had been used up and the Indian Army had suffered considerable tank losses. It was determined later that only 14% of India's frontline ammunition had been fired and India held twice the number of tanks as Pakistan. By this time, the Pakistani Army had used close to 80% of its ammunition.

Air Chief Marshal (retd) P.C. Lal, who was the Vice Chief of Air Staff during the conflict, points to the lack of coordination between the IAF and the Indian army. Neither side revealed its battle plans to the other. The battle plans drafted by the Ministry of Defence and General Chaudhari, did not specify a role for the Indian Air Force in the order of battle. This attitude of Gen. Chaudhari was referred to by ACM Lal as the "Supremo Syndrome", a patronizing attitude sometimes held by the Indian army towards the other branches of the Indian Military.

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