Dilip Kumar's biography launch: Bollywood khans to attend, Lata Mangeshkar to sing (see pics)

It will be one momentous night. Nightingale of India Lata Mangeshkar will sing, filmmaker Karan Johar will host and stars like Amitabh Bachchan and Aamir Khan will launch Bollywood thespian Dilip Kumar's long-awaited biography here