New Delhi, June 02 (ANI): Iconic veteran actor Dilip Kumar's long-awaited biography "Substance and Shadow," will be launched on June 9 in the presence of his wife Saira Banu as well as Bollywood stars Amitabh Bachchan and Aamir Khan. The biography, which was earlier scheduled to be released on Dilip Kumar's 91st birthday in December last year, is penned by author Uday Tara Nayar, who is also a close family friend of the Bollywood thespian. Dilip Kumar, one of the best performers that the Indian silver screen has ever witnessed, gave six decades of his life to filmdom and worked in much appreciated films like "Jwar Bhata" "Mela", "Naya Daur", "Devdas", "Madhumati" and "Mughal-E-Azam".