IIT

You have scored 43 based on which category you belong to whether SC/ST or OBC.You must see whether you qualify for JEE advance and sit for the exam and crack it.

Cut off varies every year. Try to attain as much marks as you can. This year onwards there will be no role of board's percentage in deciding the rank. The only option you have is to work hard.

IITs do not offer BF.Tech degree courses. You may try at NIFT for BF.Tech.

Yes. All the best.

Hi,
You can check the below mentioned link:
https://www.shiksha.com/news/jee-main-2016-expected-cutoff-article-12329-1

The JEE Mains cut off for general category is 100. But, to get a seat in NITs, you need to get score above 220 marks. You also need to score 75% in your class 12th.

Hello,
To get into IIT's you have to prepare for IIT JEE or IIT JAM entrance exams.
IIT JEE exam is to get admission in B.Tech and IIT JAM entrance test is to take admission in M.Sc. or PhD or dual degree courses.
Check complete details of IIT JEE exam here –
http://jeemain.nic.in/webinfo/Public/Home.aspx
https://en.wikipedia.org/wiki/Indian_Institute_of_Technology_Joint_Entrance_Examination
Check complete details of IIT JAM exam here –
https://www.eduncle.com/iit-jam-exam
I hope it will help you.

You can consider:
1. BITSAT.
2. SRM.
3. COEP.
4. VIT.
5. AMRITA.
All the best.

Yes, there's a good chance of a call.

The expected salary is Rs.3 LPA to Rs.12 LPA for B.Tech in biotechnology.