Congress leader Shashi Tharoor was intensely questioned on Monday night for about four hours by a special team of Delhi Police on the circumstances leading to the mysterious death of his wife Sunanda Pushkar a year back. br br This is for the first time Shashi Tharoor has been questioned on the death of his wife Sunanda Pushkar. br br The Delhi Police Chief BS Bassi said that Tharoor was cooperative during his questioning. "Will consider all relevant information related to IPL," said Bassi.