Hi

NTA score/ percentile can't be more than 100.

So, I am guessing 147 is you marks in jee main.

With 147 marks

• Your percentile  will be around 97.23 - 98.63 and if we go with 97.23 percentile then your rank will be around 28337 - 31855  as per our rank predictor at

  JEE Main Rank Predictor 2021 - Predict your JEE Main ...

  JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...

Your st rank will be around under 500.

Yes, you very good chance in NITs

With your rank , you have chances in following  which are listed below along with their closing rank in 6th round of josaa counselling 2020 under other state -

---------)National Institute of Technology Bhopal:-computer science:-584 st rank

----------)National Institute of Technology, Jamshedpur:- computer science:-765 st rank

----------)National Institute of Technology, Silchar:- computer science:-848 st rank

----------)National Institute of Technology, Jalandhar:- Civil engineering:- 930 st rank

----------)National Institute of Technology Raipur:- computer science:- 919 st rank

And many more

You can check the closing ranks  at official website of josaa by going through the link given below

https://josaa.nic.in/Result/Result/currentorcr.aspx

Or

For previous year cut offs of top colleges like NITs, IIITs , you can also refer our page at :-

NITs :- https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

IIITs:- https://engineering.careers360.com/articles/jee-main-cutoff-for-top-iiits

Above prediction has been made  considering  past year cut off data but  closing rank for colleges varies every year depending upon many factors like jee main question paper difficulty, number of students writing the exam etc so

To have a personalised report on your chances of getting a college you can go through our college predictor, it will give you complete list of colleges which you can get on the basis of the category you belong to,  your home state, your gender etc, the link for  jee main college predictor is provided below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

To help you further,

To give you an idea of qualifying cut off, JEE mains 2020  qualifying  CUT OFF percentile to be eligible for jee advanced is given below for different category

>>>> General :-     90.3765335

>>>> GEN-EWS :-  70.2435518

>>>> OBC-NCL :-  72.8887969

>>>> SC     :-           50.1760245

>>>> ST :-                39.0696101

>>>> PwD :-            0.0618524

You can check the same at our page the link is provided below

https://engineering.careers360.com/articles/jee-main-cutoff

Thankyou