It’s quite difficult to get a transfer from PTU to Chandigarh University. If you want to take admission to Chandigarh University then, you might have to cancel your admission first and then apply there.

Both PTU and Chandigarh University are independent universities and there is no link between them. Also, Chandigarh University is not even affiliated with PTU, so joining in the 2nd year is not possible.

But in case you're a diploma student then you can join in the 2nd year of Engineering. However, if you wish, you can sit for the first year again.