JEE Main

I think with 94 percentile, you will get a normal NIT. For a very good NIT, your percentile must be 97or above.

The final AIR will be declared after April 2019, considering the best score out of the two JEE Main attempts for all the applicants. Hence, based on current percentile we cannot predict whether you can get admission or not. Wait for the final AIR declaration.
Details:
https://www.shiksha.com/b-tech/articles/how-to-calculate-jee-main-rank-from-percentile-blogId-19953

Check out the predictor below for MHT CET and fill COEP in select preferred college's option:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor
For JEE:
The final AIR will be declared after April 2019 considering the best score out of the two JEE Main attempts for all the applicants, hence based on current percentile we cannot predict whether you will qualify or not. Wait for the final AIR declaration
Details:
https://www.shiksha.com/b-tech/articles/how-to-calculate-jee-main-rank-from-percentile-blogId-19953.

Yes, but try to maintain PCM subject equally. Those concept not understand then see online guidance. Mainly, you should try best books such as –O P. Tandon chemistry, H. C. Verma for physics, Arihant Objective Mathematics Volume 1&2, or Allen JEE module by www. JEE world. In.

If you want admission in NITs, then your rank should be less than 20,000 i.e 175 marks in JEE Main and 93% in CBSE boards.

For more information regarding your doubt kindly visit the following link:
https://www.shiksha.com/college/mes-college-of-engineering-malappuram-30817

It depends on which course you would like to choose in NIT, Trichy. Like the main courses which have high demand which is not possible but the courses which have quite less demand might be available. Even your category comes into consideration here at the time of counselling.

Home state Telangana try in NIT-Warangal. You surely might get a seat there.

If you think that you have less marks in JEE Mains then you can get the admission on the basis of other criteria which are provided by JU.