In November 2006, he took part in the singing competition
Fame X () inaugural 2006–2007 season. He beat the finalists Anandrupa Bagchi and Neethy Nairthe to emerge as the winner. The other top 10 finalists besides Khan, Bagchi and Nairthe included Rakesh Sharma, Banjo, Ashutosh Jain, Sammy Rajdeep, Aditya Jassi, Ritu Pathak and Arunima Bhattacharya. Khan won a music contract from
Sony BMG India, and a cash prize of Rs 50,00,000 besides being featured on Sony Entertainment Network. In 2007, he released his debut single "Naujawan". ==After
Fame X==