"This (the Henderson Brooks report) is a top secret document and has not been declassified so far.
"Further, release of this report, fully or partially or disclosure of any information to this report would not be in national interest," Jaitley said in a written reply to a question in Rajya Sabha.
Jaitley said the government is also aware of reports purporting to disclose part of the report on the 1962 war.
Interestingly, the BJP during the course of the Lok Sabha campaign seized upon the secret report about how the government bungled the 1962 war to slam the ruling Congress and demanded its release.
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Excerpts of the military investigation that were leaked in March by an Australian journalist who wrote an acclaimed book on the war said the government's policy of forward deployment in the high mountains had increased the chances of conflict.
"What are they trying to hide by making the war report classified ?" BJP spokesman Ravi Shankar Prasad had asked.
"We have a right to know what went wrong. We lost the war because of Nehru," Prasad had said while holding the country's first Prime Minister Jawaharlal Nehru responsible fot the debacle.