i passed in my class 12 and but failed in maths with no comparmental exam, if i will qualify jee main can i get admission in engineering college.
You can go for polytechnic , diploma course in the Branch you want to and then by lateral entry you can complete you b. tech degree .
If you are asking about filling for jee main sorry to say you cannot, as per eligibility you have to score 75+ in 12th to fill jee main Or get admission in nits or iits
https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-eligibility-criteria/amp&ved=2ahUKEwi33ff8qtbwAhVRaCsKHRQ_AHoQtwIwC3oECCIQAg&usg=AOvVaw0Ddf__yVIUe0laa-JjEit-&cf=1&cshid=1621447821332
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JEE Main 2025 College Predictor
Know your college admission chances in NITs, IIITs and CFTIs, many States/ Institutes based on your JEE Main rank by using JEE Main 2025 College Predictor.