Hello aspirant,

i hope that you are doing absolutely great.

With reference to your above mentioned query, i would like to tell you that There is no prescribed percentage in PCM to appear in the examination. Candidates having passing marks can also apply. but you should have minimum of 50% marks scored in your 12th result.

Further, if you want to know more about the eligibility criteria for JEE mains or Then you can prefer following the below mentioned link to know more : https://engineering.careers360.com/articles/jee-main-eligibility-criteria

I hope that this will help.