India, Feb. 21 -- Just days after receiving extortion threats, actor-couple Ranveer Singh and Deepika Padukone made a rare joint appearance at an event in Mumbai. They were joined by Ranveer's mum Anju Bhavnani at Dhirubhai Ambani International School, where DP's father, badminton legend Prakash Padukone was invited as a guest speaker for the session, Beyond Winning: What Sports Cultivate in Children. htc...