Dear aspirant,

For admission in any engineering institute in India you must have these basic eligibility criteria,

=> You should have passed the 12th class or qualifying the exam.

=> You should have passed the qualifying exam with Physics, Mathematics, and any one of (Chemistry, Biology, Biotechnology, Technical Vocational Subject).

=> You must appear for entrance exams for various colleges like JEE, OBJEE, AP EAMCET, etc.

As you have failed in mathematics you are eligible for engineering degree.

Hope it helps you..

Best if luck..