Hi

With 124 marks

• Your percentile will be around 95.52 - 97.3 and if we go with 96 percentile then your rank will be around 40920 - 46000  as per our predictor at

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

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

You have chances in lower NITs like Nit Agarta, nit sikkim.

To help you further,

JEE mains 2021 expected qualifying  CUT OFF percentile  is given below for different categories on the basis of past year trends :

.                  .  JEE      MAIN CUT   OFF    PERCENTILE

Category jeemain2020 jeemain2021 expected off

General :-     90.3765335                 90-95

GEN-EWS :-  70.2435518                  70 -75

OBC-NCL :-  72.8887969                   70 -75

SC     :-           50.1760245                  50 -55

ST :-                39.0696101                  40 - 45

PwD :-            0.0618524                      1- 2

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

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

For getting the complete list of colleges which you can ,you can use our college predictor, it gives your personalised report taking in account of your category ,home state 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 link  is provided below

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

Thankyou