Hello aspirant

You can get admission to bsc in computer science without any entrance test.  You will get admission for Course on the basis of class xii score .

For pursuing bsc in computer science you must have passed class xii with physics,  chemistry and mathematics with minimum 50 % marks .

Note that yoj must have given maths exam too as for neet biology is required .

Without maths you won't be eligible for getting  computer science seat.

If you had taken pcmb in class xij ie physics, chemistry, biology and maths then you won't have to worry .

Otherwise you can give maths exam from NIOS .