Hello Sayan,

I can see your chemistry marks is on a lower side but it doesn't matter if your aggregate score in your 12th board exams is 75% but if it is not then you are eligible to go for jee mains because you are not meeting the eligibility criteria being from general category.

But if you are from reserved category then there is a relaxation and if your aggregate score is 65% then you would eligible for jee mains otherwise not .

So I would suggest to kindly go through the official website in jee mains for the eligibility criteria or you can ask your query in the comments section .