Chairman of Indian Premier League Lalit Modi today asserted that it was his job to seek details of every shareholder and authenticate.He was responding to Tharoor's accusation of he causing impropriety by divulging the details of the shareholding of Kochi franchise.He said ,he did not know about who Sunanda Pushkar was till he read about her in the newspapers.Sunanda Pushkar, who was given 19 per cent of the 25 per cent equity held by Rendezvous Sports World in Kochi franchise, was reported to be very close to Tharoor.The cash rich IPL, which has become a one billion dollar revenue entity in the third season this year, had auctioned Kochi and Pune franchise to Rendezvous and Sahara last month for a total of about Rs 3,200 crore.