Ajay Devgn, Rohit Shetty get into action mode with cop drama 'Singham' (Preview)

New Delhi, July 19 : After giving rib-tickling hits like the "Golmaal" series and "All The Best", director Rohit Shetty is back with a full-fledged action film "Singham", with his lucky mascot Ajay Devgn, which releases Friday.