I'm not Indian, nor do I live there.
I'm only basing this on that fact that I've worked with a lot of people of Indian origin and descent in the U.S. and U.K. They can sometimes have a reputation of being a little quiet or conservative when it comes to dating.
But that is a big generalization. I've met Indian guys and girl who are EXTREMELY outgoing, infact, 3 of the top guys in my company are from India and they got there by being really top, great, outgoing and driven guys. They don't follow what people might consider to be "typical" of an Indian guy.
So I'm not in a position to make HUGE assumptions or determinations about it BUT..... and there is a BIG but....
I've lived and worked in many countries and I hear the same thing EVERYWHERE. People perceive their own people to be cut off, conservative, even unfriendly... while considering other cultures to be more open to all sorts...
I hear it EVERYWHERE I've been... so how can it be true?
I'm Irish, we have certain stereotypes but it doesn't define us all. People here in the States always tell me "I love the Irish, they're all so friendly", yet in my home town people are often perceived to be "cliquey". Funny how locals always see this about their own but an American coming to Ireland sees us as welcoming and friendly.
Irish guys always say game doesn't work on Irish girls, they are too difficult, it would only work on American girls (or English, or Eastern European, or whatever). But I've equally heard the same in in all of those places from the locals.
It's just perception. So taking India as an example. I'm sure you'll come across some girls who are more conservative or live very strictly to their culture. But for every one of those where will be another girl who is very out going, open to seeing and discovering the world, so you can never generalize.
That's just my take from seeing and talking to people in and from different parts of the world.