Rashtriya Janata Dal president and Railway Minister Lalu Prasad Yadav seems to be attracting world attention.

"Many foreign embassies and universities like the Harvard have sought my bio-data to know more and more about me," he said on Sunday after releasing the music cassette of the film Padamshree Laloo Prasad Yadav.

"I have come to know that the sociology department of Harvard University is doing a research on me," he said in Patna.

"Though my rivals dub me as 'joker and a clown', the world wants to know who this person is and how he rose from a humble background to this height.

"Many foreigners who meet me at functions ask questions about me and my background," he said.

His wife and Bihar Chief Minister Rabri Devi and Bollywood stars Sunil Shetty, Sharad Saxena, Kim and Mausmi were also present on the occasion.

The film is expected to be released in the first week of October.