Dear Mani, to pursue CFA course in the US, you should have a bachelor's (or equivalent) degree or

•    Be in the final year of your bachelor's degree program at the time of registration, or
•    Have four years of qualified, professional work experience, or
•    Have a combination of work and college experience that totals at least four years (Note: Summer, part-time, and internship positions do not qualify.)

Once you fulfill that eligibility, you need to

Enroll with Proschool for the CFA training program
•    Enroll and Register with the CFA Institute USA for Level I Exam
      o    Exam Month June – Registration Deadline February – March
      o    Exam Month December – Registration Deadline August - September
•    Pass the examinations
•    You need to pass Level I, Level II and Level III exams sequentially.
•    Apply for Membership after clearing your Level III exam ( for membership along with CFA Level III you need to have at least four years of Professional Work Experience).