Do NOT obsess with college so soon! I know of many Indians who have migrated to the US since my husband is from there. IF your son/daughter wants to study in the US or work here that is a decision to be made later. Some choose a US education for a masters degree, others work here in tech fields utilizing their Indian education.
As others have stated- it is your child’s, not your decision. Even (especially) gifted children need to enjoy their childhood without being pressured to perform. Bright students also need to be children first. Despite what you may think life is to be enjoyed while growing up, not just to be a step to an elite school or job. Not all brilliant Indians want to leave their country, nor do they need to to have excellent opportunities in current times.
There is a lot more to life than one’s job. Really think hard about your culture. Do you want to have your grandchildren on the other side of the globe, growing up with a different culture??? Children of Indians who live in the US are Americans, not Indians. Even in areas with thousands if Indians life is different here than there.
My husband was not typical, he really embraced American culture before we met. Others have had one foot in each country- some have returned to India permanently. It is far too soon for your child to consider these issues. And wrong for you to try to impose your will on this.