Hi Shuaib,

If you have taken PCM, you could go for Engineering. The top examination for this field is JEE-Mains. by this examination, you could get admissions in NITs, GFITs and IIITs. If you want to get admissions in the top institutes of India, which are the IITs, you have to clear Mains and get a good score in Advanced  above 2000 rank at least. Other top institutes like MIT, VIT etc. conduct their own entrance exams.

If you do not want to go for Engineering, you could answer the CLAT exam and go for Law.

You can go the conventional way of Engineering, B.Sc Mathematics or 5 year Intergrated proogramme by IIM Indore. You can study Acturial Sciences or Pharmacy or Statistics. Then you can also study Law courses like 3 year or 5 year Integrated Law courses as well. CBSE has released a list of 113 courses that you can check from at their page http://cbse.nic.in/newsite/attach/Compendium%20of%20Courses%20after%20+2.pdf