Hello aspirant,

Hope you are doing great. As par with your question, YES, it is important to get 75% percentage of marks in your 12th standard, to qualify for the JEE Advanced exam. Because, as per the eligibility criteria prescribed by the National Testing Agency, you need to score 75% of marks in your 10 + 2. Also, if you belong to SC/ST/PWD category, you need to score 65% of the marks in 10 + 2. Then you will be eligible to give JEE Advanced exam.

Hope this helps you,

Good luck, Thank you.