You can't sponsor your parents until you are a U.S. citizen and you must be a green card holder for 5 years (unless you are married to a U.S. citizen) before you can apply for citizenship. Will you be managing any employees in your position in the U.S.? Are you managing any employees now?
It's going to be a long process to a green card then. The only reasonably fast path is the EB1A extraordinary ability path and the standard is very high and difficult and subjective/uncertain.
I am from India as well, and I am currently a startup co-founder for a self-funded startup that currently employs about 5 American Citizens full time. My other co-founder is with me on the idea of continuing the self-funding situation and acquire more customers which will increase our revenue.
I am considering applying for EB-1 but wondering what my changes would be to get a GC through that path, would you rather advise me to wait a bit more until we hit 10 American Citizen workers in our company?