Yes, in Mumbai you do need Hindi. In Chennai, they'll probably ignore you if you talk in Hindi :-p. Thanks for your interest, it's encouraging to know at least

Yes, in Mumbai you do need Hindi. In Chennai, they'll probably ignore you if you talk in Hindi :-p. Thanks for your interest, it's encouraging to know at least some people would find this useful. If you like, drop me an email and I'll update you when I put some stuff up.