Later, it was revealed that there were efforts by ex-RAW chief AS Dulat and others to cover up the real motives of why the plane was not immobilised and why there were no commando-operation to neutralise the threat. The RAW officer named Shashi Bhushan Singh Tomar, husband of Sonia Tomar, was boarded on the plane, who was a brother-in-law of N K Singh, secretary to then Prime Minister Atal Bihari Vajpayee and he ensured that the plane would be let off and no commando operation would be carried out to ensure his brother-in-law's safety. According to RAW officer, R K Yadav, author of Mission R&AW, days before the hijacking, UV Singh, another RAW operative in Kathmandu informed Tomar that Pakistani terrorists were planning to hijack an Indian plane and he ordered Singh to check the veracity of his report where Singh vouched for its reliability but Tomar rebuked him and told him not to spread rumours. Later, Tomar was found on the same plane which was hijacked and became the cause of failure of the operation. The then Prime Minister Atal Bihari Vajpayee was kept in the dark until around 7:00 pm, a full hour and 40 minutes since the hijacking of IC 814 and he came to know about the hijacking only after disembarking from the aircraft in the VIP bay of Palam Technical Area.