Hi candidate,

Yes, you can take part in engineering competitions even if you have failed in maths and given re-examination for improved results. You can always pursue engineering and related fields that needs mathmatics as a compulsory subject of you have qualified the minimum eligibility criteria for the examinations.

Like for class PUC Karnatka, Must have passed the 2nd PUC or 12th class exam. Must have Physics, Chemistry, and Biology or Physics, Chemistry and Mathematics. An aggregate minimum score of 45% in 2nd PUC.

However, it's all your choice, you can also go for diploma courses through which you can pursue higher degree courses after satisfying the minimum criteria.

I hope it helps.

Thank you!