Hello Kiran, 

It is not possible to pursue two BAchelors Degree simultaneously from Delhi University. Neither it is possible to transfer yourself to another course in your next academimc session. If you wish to change your degree, you may withdraw your admissions and re-register for Delhi University to get a re-admission for a different course, however you may not continue your second year and pursue a different degree.

I hope this information was helpfull!