Where should I go for college - India or the US?

I'm on a diplomatic visa in the US. I've applied to a couple of universities here, but I don't know whether I'll be able to stay here on my own for 4 years. I've completed by last two years of high school here. I'm looking at an engineering college in India too. Staying in the US is expensive, but may be worth it. I really don't know. HELP!