Mother of the pilot, who was killed in the recent Kedarnath helicopter crash, passed away in Jaipur. Vijay Lakshmi Chauhan was rushed to hospital after she complained of severe chest pain and collapsed on the 'tehravi' (13th day rituals) of her son Lt Col (Retd) Rajveer Singh Chauhan. Vijay Lakshmi died of a heart attack, doctors reportedly said.