Hello Bittu,

For the colleges to accept you, you need to have JEE Main qualified marks as per your category. Below I have provided 2019 JEE Mains cutoff category wise - 

• CRL : 89.75
• GEN-EWS : 78.21
• OBC-NCL : 74.31
• SC : 54.01
• ST : 44.33
• PwD : 0.11

Now if your secured percentile has cleared the JEE Main cutoff as per your category, then you are eligible to take admission through your JEE Mains score. Now to find out which colleges would you get, you need to attend the counselling session of the colleges. If you want a seat in NITs,IIITs or GFTIs then you have to attend JoSAA counselling. You can go through this link and checkout the details regarding JoSAA : https://engineering.careers360.com/articles/josaa

If you want to go other private or government colleges those who accept JEE Main scores, then you have to attend their respective counselling proccess. 

Hope you get your choice of college and branch.

Good Luck !!!