Bollywood producer to speak at Harvard India Conference 2012, Rediff news search engine

Name the Bangalore-based Hindustani vocalist who passed away recently.
Lalita Shivaram Udhayaker

In which housing finance major did Citi sell its stake for Rs.9,327 crore?
HDFC

Name the bollywood producer who has been invited to speak at the Harvard India Conference 2012?
Ritesh Sidwani

Name the news search engine introduced by Rediff.com website.
Relatime News Search