Hi

It's quite difficult to make prediction but yes as per our rank predictor you should try to get around 150 marks to get OBC rank of around 3000.

For example,
Predicted Rank and percentile for 150 marks is given below as per our predictor

Your Overall Percentile is: 98.79 - 98.99

Your obc Rank based on category is: 1656 - 3306

Your Predicted Rank is: 9152 - 10802

These above  rank are just estimated rank and percentile, the actual rank/ percentile will vary a bit as above prediction is on the basis of JEE main 2020 data but rank /percentile  keeps changing every year depending upon various factors like  number of students that appeared in the exam, kind of marks obtained by them , toughness level of the examination for different shifts of the exam etc

With your estimated rank chances in following colleges :-

* NIT bhopal :- Electrical Engineering
*NIT Calicut :- Mechanical Engineering
*nit delhi :- Electronics and Communication Engineering

And more

For this you can refer to
https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

Now that,

limited time is left for jee mains 2021 , so you should be focusing on your preparation,

• practising chapterwise questions

• then revising the chapters,

• solve at least previous 10 year question papers as concept behind the question often gets repeated in the examination so it will be of great help in your preparation  ,

• go through mock test papers as it will let you know your preparation level and and weak areas so that you can work on them and perform well in your examination.

Thankyou