My problem with this movie
I was really bothered by the self defeating stupidity of the guy's search for his home.
It reminded of the movie The Diving Bell and the Butterfly where the guy who could only communicate by blinking - so his caregivers would recite the alphabet - over and over - and he would blink when they needed to stop - and he spelled things that way - one letter at a time - and I'm like START BY TEACHING THE GUY MORSE CODE YOU GINORMOUS MORONS!!
In the case of Lion, dude, bring more people into it. Get more ideas and a spirit of scientific collaboration. Chicky-poo wants to help. Let her. Or if you're down on her, let someone else help. It's an interesting enough scenario - I bet you could get 10 helpers. Maybe a thousand.
Is your priority to wallow in torment or get an answer?
My immediate and constant thought was: we have an incorrect town name Ganastulay. Maybe it is being mispronounced slightly. Maybe get a list of every single town that starts with, oh, say, the letter G - and look at them.
Say isn't there an Indian god Ganesh? That actually sounds quite a bit like the starting of Ganastulay. Sometimes gods end up in place names. Too obvious?
If you want to have someone doing the speed-of-trains and search radius thing ---> why not? Cross reference stuff. People talk to each other and have inspirations.
Seems to me the whole search should have taken about an hour and twelve minutes.