The rumors of Asin doing a Tamil film have been in the grapevine for some time. When contacted Asin in Mumbai, who was getting ready for her London Dreams, with Salman Khan and Ajay Devgan, she said, "No, I have not signed any film down south. As of now, for the next six months, I am very busy,I have to complete London Dreams and the promotions of Ghajini will start from October.I had to opt out of Priyadarshan's film due to lack of dates this year."The buzz is that Asin may be doing