Hello

BSC in computer science is a 3-year undergraduate course which deals with computer applications and their software.

Now let's come to your query so ,the answer is No you don't required any entrance for bsc cs you have just have good marks in 12th board.as per your percentage colleges give admission.

some colleges take their own test or interview for screening of students but it is just for few colleges.

So you can take admission in bsc cs as per your 12th board Percentage

GOOD LUCK

I HOPE THIS HELPS YOU