There are other sources of funding your scholarships too. You can always check out scholarships offered by the Government under the HRD ministry. And of course, there are the fulbright scholarhips that you ought to try out - they ar normally funded by the US government and the partner government. For example, in India - the fulbright scholarships are funded by Indian and American governments and there is a proposal to involve the private sector into this field too..which of course is great news for all of us.
Even if ou dont get a scholarship, you can aways work part time to cover your tution fees - and in some cases earn a surplus to send home! But as I said earlier, a scholarship is always handy - it will make you more secure as a student studying in a US university.