Sorry to hear about this, cooldhaya. Like Zinam mentioned, once lost is lost but you did a good thing calling up Airtel to block the SIM. I have lost a couple of mobiles in the local trains here .
I heard a lot about the Bombay's Local trains so how could my trip end without travelling in them? It was night time, had my handycam with me and the rush was too much, Can't forget that trip. But however, I had a lot of fun in Bombay also the people are quite helpful. Will love meet you all whenever I make visit next time.