Uh, sometimes they have arranged marriages in the works, thus it sorta rules out dating. But that's only sometimes.
Besides that, me personally, I get the impression "American" tactics don't work well with Indian women. IE, being like this:
I think they're probably more "old fashioned." Also, nationality, caste and family name has a lot to do with things. If in India, they were dalits, and now they're in America, it'll be different than if they're Brahmins, and coming here. Also, religion very much plays a huge role in a lot of Indian peoples lives. Not quite as much Hinduism, like you don't find a lot of really serious Hindus here in US, but if they're Muslim or Christian, they're likely very serious about it, so you gotta look at it from that perspective. Also, Pakistanis tend to be a bit more open imo than Indians to talking with you. I wouldn't mind an Indian wife at all, and Indians are some of the nicest people I've ever met, they're awesome.
But really, with Aspergers, you might be in a better position for Indian girls than average. Even if the girls like as*hole guys like that, their family won't, and their family is quite important to them usually.