Exam

Hello, B.Tech in ECE is a good option in today's requirement and there are good placements in industry. But companies only take students who have extra skills along with degree. They don't just take a degree holders. So do extra courses and job will be in your hand. Best of luck.

You must give the exam this year only, as you also know time is very precious, and you must not wait for 1 year, as day by day competition is growing, and every year you will have more competitor than the previous one.

No IITs can be opted through JEE Mains exam. You have to first clear JEE Mains and JEE Advanced exam.

Yes,
For admission in top rated management institute in country, you need to crack CAT, XAT, and GMAT Exam.
Most of the good B-School take admission through entrance exams score.

Hello, As per your mentioned question, there are no IITs which give admission just by opting JEE Mains exams, but for NIT, you have to clear JEE Mains. You have to clear both JEE Mains as well as JEE Advanced. Also, you have to score well in JEE Mains to get a good NIT.

In NEST, questions from all the three Physics Chemistry and Maths will be asked.

No, if you prepare for JEE, that means you are already preparing for UPSEE too.

I wouldn't suggest you to drop 1 year, because you will need to study extra hard to beat JEE Mains. But, if you really want to prepare, Kotak is best option for you.