Bihar Deputy Chief Minister Sushil Kumar Modi on Saturday called jailed RJD chief Lalu Yadav's autobiography a "poorly written" book filled with factual mistakes. 

"I have gone through the autobiography. It's such a poorly written book," the senior BJP leader told reporters when asked for his opinion on the former Bihar chief minister's recently published book, "Gopalganj to Raisina: My Political Journey". The book has been co-authored with former journalist Nalin Verma.