Hey!

Absolutely, you can change your branch after taking admission in to the college. It will depend on the merit/score/SGPA obtained in 1st and 2nd semester of your study. The college drops off a notice in the name of upgradation of branch during/after 2nd semester on the website. You need to check regularly and then fill out the form with your choices  of branches for upgradation. For more info, visit here:

http://www.ipu.ac.in/Pubinfo2019/upgr190819.pdf

thankyou