Hi

With  64  percentile

• your rank will be around 368280 - 414000 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 10k

It's quite to make prediction but when we go through previous year trend then

In 6th round of josaa counselling 2020, last rank for gender-neutral  for st category in NIT Calicut was for Bio Technology (4 Years, Bachelor of Technology) which is given below:-

• Home state :- 16983 st rank

• Other state :- 289 st rank

So, with your rank you have chance only if you have home state quota

You can check the same at

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

Under other state quota,

You need at least a rank of around 3500 st rank to get into even lower NITs in lower branches like Biotechnology and Biochemical Engineering in Nit Agartala i. e tleast around 81 percentile.

This  prediction is on the basis of past year cut off data but  cut closing rank changes every year depending upon  number of candidates that write jee main examination, difficulty level of the question paper for different shifts of jee main 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 improve your score in your  remaining attempts of JEE main 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