H1B Transfer Rejected

Hi I resigned company A and Joined Company B , But my H1b Transfer got rejected. what are the options i have now to stay in US.Can i try for company C? or i have to go back to India ,Please let me know what options i have to stay back in US

What is the reason for the rejection?

I believe you can transfer to another employer in most cases. You will apply a new petition and ask for cap exemption based on your approved H1b (Better Contact a immigration attorney with out delay)

The other option would be

F1 - Masters

H4 or dependent visa

Finding a job with a employer that fall under cap exempt (some non profit Reasearch institues or similar)