It is discussed in several books that the CIA had a mole in Indira Gandhi's cabinet around the time of the Liberation war for Bangladesh in 1971. There are conflicting reports about who the mole could be. In spite of several denials and claims, it does not seem apparent who the person might have been.
Anuj Dhar in his book writes-
"Declassified records make it unambiguously clear that the month-long show of strength by the USS Enterprise and accompanying flotilla was a byproduct of the CIA operative's reports,".
He reproduces chunks from official records detailing how Nixon ordered a naval task force towards the subcontinent to "scare off" India from attacking West Pakistan.
In subsequent years, former Prime Minister Morarji Desai, and two deputy PMs - Jagjivan Ram and Y B Chavan - were alleged to be the CIA operative active during the 1971 war.
"The final twist in the tale came in 1988 in Bombay. … Now defunct newspaper Independent carried a story reportedly based on a (R&AW) communication to Prime Minister Rajiv Gandhi exonerating Morarji Desai and implicating deceased stalwart Yashwant Rao Chavan, Finance Minister during the 1971 war. This led to an ugly uproar and the paper's editor Vinod Mehta, in his words, ‘had to flee Bombay'."
Has there been any further revelations or declassifications which throw light on this matter?