Ranveer Singh and Akshaye Khanna's spy thriller Dhurandhar continues to hold firm at the box office even in its sixth week. The Aditya Dhar directorial has shown exceptional staying power and, according to Sacnilk, has crossed the Rs 810 crore nett mark, reinforcing its position as the highest-earning Bollywood film of all time. Riding high on the massive success of Dhurandhar, the makers have Dhurandhar 2 already in place and are now fine-tuning the sequel.