Hello aspirant

Hope you are doing great there . Yes , you can still get colleges on the basis of your class 12th marks . You will not be able to get a seat in B.Tech in some government college since most of the government college give admission on the basis of the marks obtained in jee mains .But you can definitely apply for some private college .

If your score is above 95 percent in class 12th , then you can get a seat in

Thapar University

VIT vellore

VIT chennai

otherwise if you have less than 95 percent you can try for colleges given below

Chitkara University

Galgotia University

VIT Bhopal

JIIT Noida

I hope my answer helps

Wish you all the very best!