Thank you for your question.

Please read the following to get a clear view regarding your doubts-

Its required to have at least one paper in Mathematical Sciences (operational research, statistics, mathematics, computer science) under annual mode. 

Candidates need to have minimum two papers in Mathematical Sciences (Computer Science, Statistics, Operational Research, Mathematics) in semester mode or equivalent degree. 

Minimum Percentage of Marks required at the undergraduate level 

DU MCA eligibility criteria 2019 mentions that the candidate must have at least 60%  marks in aggregate. 

Good luck