A video of television interview of late Indian captain Mansur Ali Khan Pataudi's wife Sharmila Tagore explaining the reason why she asked former Australia captain Ian Chappell to give a speech at the Raj Singh Dungarpur World Cricket Summit in place of what would have been Tiger Pataudi's welcome address.   Chappell paid glorious tributes to legendary cricketer Mansur Ali Khan Pataudi, who passed away on September 22 this year.   “His (Pataudi's) abilities could have been used to the full extent. He had a wonderful knowledge of the game and had the ability to give more to cricket. I know he had some role to play in the IPL and was a match referee but he could have been used more wisely given his vast experience as a player,” Chappell said during the Raj Singh Dungarpur World Cricket Summit.   The 70-year-old cricketer, who scored 2793 runs in 46 Tests, led the team to victory in nine matches, including India's first overseas win against New Zealand.