Hello Karthika,

I am sharing the process how to calculate the merit out of 100 by this you can check where you can stand. Your admission through NATA is based on your merit system. Divide the NATA score by 4, and your CBSE result by 2, and add them to find your merit out of 100. Normally colleges accept a student who has 60+ merit overall, and sometimes colleges even go for lower merit.

Here's a list of colleges that accept NATA score:

Https://engineering.careers360.com/colleges/ranking/2018/top-engineering-colleges-in-India-accepting-nata-score?page=1

After checking your merit number you can go through the above  link and check which college you get.

Hope this information is helpful for you.

Good luck!