It depends upon the JEE Main and JEE Advance cut offs, If You manage to qualify the exam by achieving the cut off, You can apply for JOSAA Counselling. It should be noted the cut off for EWS/SC/ST/FEMALES/OBC category is lower than the general category
However It is usually advised to fill the choices as per the preference of colleges and departments, for example CSE in NIT Trichy is your priority followed by CSE in NIT Warangal, you can fill CSE at NIT Trichy at serial number 1 and CSE at NIT Warangal at serial number 2 and so on and so forth. However to get any NIT, you must have qualified JEE Mains and to get any IIT, you must have qualifies JEE Advanced

But the previous cut offs of colleges should be taken in consideration, it is better to research over the cut off of colleges then make a preference list of colleges and fill accordingly

For the college preferences and the courses provided by these colleges and to know which colleges participate in the JOSAA counselling, please go to the below mentioned link: https://engineering.careers360.com/articles/josaa-participating-institutes/amp

For college prediction as per your marks and rank, please go through the below mentioned link:

Hi

With 86.4 percentile

• Your rank will be  around  139128 - 156400 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 obc rank will be around 40k - 45k

With above  rank, you have very low  chances in even lower north -eastern NITs

For example,

Closing rank for some of the lower north eastern NITs for OBC  category under other state is provided below in 6th round of josaa counselling 2020 :-

• NIT Mizoram ,civil engineering :- 14730 obc rank

• Nit nagaland :- Electronics and Instrumentation Engineering (4 Years, Bachelor of Technology) :-  15340 obc rank

• National Institute of Technology AgartalaProduction Engineering (4 Years, Bachelor of Technology :- 15659  obc rank

You can verify the above at

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

So, to get a seat in even lower north eastern NITs you should get at least around 15000 OBC rank i. e around 95 percentile .

This has been predicted on the basis of past year data but  cut off/closing rank for colleges keeps changing every year depending upon many factors like number of students that appeared in the examination, difficulty level of the JEE main question paper for different shifts etc

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 improve your score ,you should focus on your preparation go through previous year question papers ,mock test papers and to help you in your preparation we have jee main knockout out for you, for which  is provided below

https://learn.careers360.com/knockout-jee-main

Thankyou