Engineering Entrance Exam

Without rank I cannot give any assurance but you have good chances of conversion. Also, conversion depends on the branch you would prefer.

You won't get admission in NIT's or IIT's. You can get admission in general private institutes, just know the nearby private institutes near you locality.

Well, you should decide it by your own. If you are confident that you will clear the JEE next year, then only you should drop. Otherwise, don't waste your time and get admission in engineering college. There are so many private college, which are also providing best education and placements as well. So, no need to be worry about getting IITs or NITs. All the best.

It's not about college but it's about the field in which you are interested. Talking about college wise, go for NIT Warangal.

Yes, it is a good branch. But opt for metallurgy only if you are interested in this field.

Dear friend, please refer NIT-Warangal official website. They have provided opening and closing rank of each department as well as per quota. By referring that you can expect your admission chances. Please don't consider that cutoff will be same for this year too. It changes every year, but there is not much difference.
All the best.

You can check your college.
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

I think so, if you want to devote one more year for JEE, then only. If you have a strong will power, then only try for it. Otherwise, it will waste your prestigious 2 years and you will have a regret of lifetime. Please let me know how are your studies going on? Are you not able to study well or unable to concentrate? Have you registered for any coaching institute droppers batch. Then, I may help you in letting know of how to get you through the exams and out of wits.