Yeah! in BTech you can change your branch provided you have to appear for the lateral entry examination which is essentially an entrance exam for diploma student organized by the state government for providing admission directly to the 2nd year of BTech. Now if you wish to change your trade to a more preferable course such as CSE/IT then you need to score good in the lateral entry examination as the competition for this trades are quite high.

To know more about the lateral entry examination in India visit the link below:

https://engineering.careers360.com/articles/what-btech-lateral-entry-eligibility

I hope this answer helps. All the very best for your future endeavors!