I take a guess and then see how many formats for that guess I can find. It helps to know alot of home video formats I can check against.
Tell you though it isn't easy because search engines have noticeably began to suck donkey ass of late. All the skills I've developed have turned worthless as searching no long works the way it did a scant few years ago.
I would wonder if there's a Bollywood film that meets the same criteria and could be a strong contender?
I suppose it's possibleDeewaar or Muqaddar Ka Sikandar got a whole bunch of other releases (the second was popular in The Soviet Union) but other than that I don't think laserdisc was ever released in India and that's a whole format. Since some of these films released on near every format every one counts.