Bihar

Hello,
I am attaching a link that will give you all the required information about different eligibility conditions for NDA. https://www.shiksha.com/sarkari-exams/articles/nda-eligibility-criteria-blogId-22425
I think you are outside the zone as those born before 01 July 2001 are not eligible. But go through the information once again. Best wishes to you.

If you do not meet the eligibility criteria, then you can not get admission for B.Com maths is compulsory for this program in DU.

Yes you can apply here. The eligibility criteria of B.J. M. CAT IIMMIT Delhi is 10+2 or equivalent examination from board of school education, CBSE or any other recognised board or 3 years Diploma from Board of Technical Education, or its equivalent. Course duration : 3 Years
Further registration will be open for the Academic Session 2020-2021 in the month of February 2020.

As per the JEE Main eligibility criteria, For admissions in NITs/ IIITs/ GFTIs : Candidates should have obtained a minimum of 75% marks in class 12 or equivalent exam or they must be in the top 20 percentile in their class 12 examination. For SC/ ST, the eligibility is to obtain a minimum of 65% marks in class 12 or equivalent. So as per the eligibility criteria you can not get admission in NITs.

Your marks are very low and admission can be difficult. Prepare for donations/ management quota.

There are many institutes like ISOMES, amity, Galgotias, SRM, LPU, etc. which offer this course. But your marks are very low and admission could be difficult. Prepare for donations/ management quota.