Shah Rukh Khan starrer 'Dunki' is going steady at the box office. On day 18, on its third Sunday, the film, surprisingly, witnessed a jump in its collections as it earned Rs 4.25 crore (across all languages), as per early estimates, according to a Sacnilk report. In total, the Rajkumar Hirani directorial has amassed Rs 216.57 crore at the Indian box office. On Day 16, on Friday, it minted Rs 2.25 crore and on its third Saturday, Day 17, it collected Rs 3.6 crore. It had an overall 18.73% Hindi occupancy on Sunday, January 7.