What are your qualifications?? have you enrolled yourself in a law course?

Well, you question is open-ended nevertheless, after 12th or after graduation, you will have to enroll yourself in a professional course of law. After you are done with the professional course, you will be required to give All India Bar Examination and once you clear it, get yourself registered with Bar council of the particular state where you want to start practising. Once you are registered, you can practice as a lawyer.