They don't even want to call the highest grossing Indian film of all times. They insist that you can't overlook the measures of inflation.
Anil Sharma, the maker of Gadar, said that released in 2001, Gadar had collected 265 crore rupees and was a colossal hit at the box office. In those days ticket rater were very low and there were no multiplexes either. If we add the inflation, then the 265 crore rupees collections of Gadar can go all the way to 5000 crore today!