Hello Karthik,

As per my opinion, your question should be about the minimum qualifying marks required for JEE-MAIN in 2021. Because there can't be any boundary level for maximum marks in any examination, it's only dependent on your skill, practice level, perception and knowledge.

However regarding your query, at first I want to refer you to check the cut-off marks of recent and previous years which is accurately available in the following link:

https://engineering.careers360.com/articles/jee-main-cutoff

So after analysing these cut-off details prominently, it can be estimated that since you're a general category student, you have to manage almost 75-80 marks out of 300 next year to definitely become qualified for the JEE Advanced round.

So now start intense hard-working and try to be self-sufficient and well-equipped for your own betterment in the upcoming JEE-MAIN exam 2021.

Wish you all the best.