An official spokesperson of Rashtrapati Bhavan said the President called Tharoor and conveyed his condolences.
Sunanda Pushkar, who was upset over an alleged extra-marital affair between her minister husband Shashi Tharoor and a Pakistani journalist, was found dead in a five-star hotel room which police suspect may be a case of suicide.
The body of 52-year-old Pushkar, a woman entrepreneur who married Tharoor in August 2010, was found in mysterious circumstances in luxury Leela Palace hotel in South Delhi.