Hey.

Yes, 12th boards marks are considered while seeking admission in any of the IITs. You  should have passed 10+2 or equivalent examination with an aggregate of at least 75% marks. If you belong to SC/ ST and PwD category, you need the aggregate of minimum 65% marks.  You should

As it is clear that Bio-technology is a disciple of engineering so for the btech course you need the give the entrances that consists of physics,chemistry and mathematics so, In your case their is no mathematics as per your info that you have provided so if the above decision is

Yes you can bt try to clear it  in the first year because the dropout year is very difficult to handle. A lots of tension and pressure is there. Your enthusiasm will reduce . So try to clear it in the first attempt.

To be eligible to appear in JEE Mains you must meet its eligibility Criterion.

The eligibility criterion for JEE Main is as Follows

2.9 Eligibility for appearing in JEE (Main) – 2019 2.9.1 Age Limit For appearing in the JEE (Main) examination there is no age limit for the candidates.

As per the eligibility the candidates passed 10+2 or the equivalent examination in 2017 or 2018 and appearing for 10+2 in 2019 are also eligible to apply for JEE Main Entrance Exam. You can check the furtehr eligibility with the given below link.

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

Good Luck!

Hello,

Originally you have a maximum of three attempts for JEE Main. You can appear twice for entrance test in a year. So, this if used in correlation with the original number of atempts, from 2019 onwards, JEE Main number of attempts in total will be six. So, relax and

Firstly I would suggest you to go through well with NCERT books as it will help you to clear your concepts then I would suggest you to prefer the other books.

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