Hello Sharath

First you must have above 60% in 12th(Pcm)

Second you must have taken jee main exam that year

Later branch is alloted on the jee main score, this year cse in Punjab was available at 75/360 in jee main.

But the university has a good number of seats in BE CSE, so you can get admission easily. It depends on you, which campus you wish to opt for, but the Chitkara Rajpura seats fill in fast as compared to Baddi campus, there is no difference in placements of the two, as the placements are held commonly for both the campuses.