In JEE Main overall percentage would be considered not only PCM.

Hey,
As per CBSE, candidates should have secured at least 75% marks in class 12th exam(all subjects) or be in the top 20 percentile in the class 12th exam conducted by the respective board. For SC/ ST candidates, the eligibility criteria is 65% marks in class XII to get admission through JEE Main 2018.

To know more about eligibility criteria, refer the below link-

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

Dear Girish,

You have to consider your overall percentage.

In order to be eligible for IITs/NITs/IIITs and GFTIs you should have 75% marks in your board exam or you should be in top 20 percentile for general category and 65% for SC/ST.

Good Luck!!