Are your parents US citizens living abroad and filing US income tax returns each year, or are they international?
For your financial aid applications, you will need to file the FAFSA and possibly the CSS Profile and/or additional paperwork specific to the college/university itself. Take some time to check those out. The paperwork is not horribly difficult for people who file US income tax returns, but can be somewhat confusing for people who don’t. There is a lot of useful information for you in the Financial Aid Forum, so spend some time there. Check out the thread at the top of the forum that lists Automatic scholarships. If you follow the links, you can find out which of those have changed for your application year and which you still would qualify for.
Are you at a school that sends many graduates to college in the US? If so, your own college-placement team should have useful ideas for you. If not, contact the EducationUSA office closest to where you live. There are several in India. Given the number of US citizens in high school in India, chances are that the counselors at that office will have experience with students in your situation. https://educationusa.state.gov/find-advising-center?field_region_target_id=&field_country_target_id=306&field_center_level_value=All