master degree

I have done Diploma in LUCKNOW and with equivalency i have joined as Lateral Entry in own city HYD i.e 3 + 3 years in Computer Science , am i eligible to do Masters in US? what entrance exam i need to apply for? what course i can do in MASTERS sorry for bad english

If you have Bachelors degree from accredited university, you should be eligible. If you are in doubt, you can write to the schools you plan to apply and share details of your college and seek clarification, if they consider your degree. Regarding course, you would need to know what you are passionate about and pursue the same. Take some time to think about what you want do.