Hey!

After 2nd PUC in physics, chemistry, mathematics and computer sciences, you can opt for a wide variety of courses:

• Bachelors of science (Honours) in physics/chemistry/mathematics/computer science
• Bachelors in Computer Administration
• Bachelors in Technology
• Bachelors in research
• Integrated B.S.-M.S. 
• Diplomas, certificate courses
• Bachelors of arts in various courses
• Bachelors of commerce (As you have studied mathematics)

You can choose any of these courses as per your interests.

Best wishes!