JEE

Technically Yes, A candidate can appear in all the 4 sessions of JEE Main. The eligibility criteria of all the papers is the same. However if dates and timings of Paper-1, Paper-2A and Paper-2B are not overlapping than these sessions can be attempted easily.

A candidate has option to apply for one Session or more than one Session (February/March /April /May
2021) together and pay exam fee accordingly. In other words, if a candidate wishes to apply only for one Session, he
/ she has to pay Examination Fee only for that Session during the current application period and will have opportunity
to apply again for the remaining March/ April / May Sessions. Out of that your best score will be used for your JEE ranking. Thank you.

Hello khushi, It is next to impossible for you to give JEE Mains because minimum eligibility of JEE requires maths as a subject. Although, you can go for bio-technology and food technology. Also, if you want to give maths paper, you need to complete your 11th and 12th again taking maths as an optional. You can apply for some non attending schools and can prepare yourself for JEE in two years. Hope, this might help you :). .

Hello Aditya, if I may say so your percentile in in both mht CET and JEE mains for a bit on the lower side. You will of course get advantage of the quota of 10% of the seats reserved for e w s candidates. But whether this will translate into to getting a branch of CSE is difficult to say. to help you I am attaching a link that can predict the branch and college that you can get based on your performance in this examination.
https://www.shiksha.com/engineering/mht-cet-college-predictor
Best wishes to you.

May be
Lastly it will depend upon cutoff.