6. Rabinder Singh spy case: The most infamous case which shook RAW out of reverie was that of Rabinder Singh who became a mole of American intelligence agency CIA and flew to the US despite being under RAW surveillance. He now stays in the US.
Singh initially worked with the Indian Army and held a very senior position with RAW handling Southeast Asia. By the time the agency sensed his affiliations, Singh escaped to the US through Nepal in 2004.
It was believed that Ashok Sathe another RAW official also defected to the US after his mysterious disappearance.
Sathe was said to be behind burning down of RAW office in Khurramshahr in Iran.
A senior field officer disappeared in London. As attache in Kathmandu, he was alleged to be liaisoning with foreign intelligence agencies in the early 1980s.
A senior Intelligence Bureau (IB) official in another case, had an "unauthorised" relationship with a female US consular officer. He was due to take over as the chief of counter-intelligence.
He was forced to retire following interrogation as his meetings with her were recorded on camera by the IB.