Hello Rajeshwari! 

Greetings! 
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. Your merit will be around 67.5 so you are eligible for many coleges.  Congratulations!

Here's a list of colleges that accept NATA scores and their cutoffs:

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

Please upvote if this was helpful to you. 

Good luck!

Hello,

If you are a home state aspirant then there are some chances of getting cept, ahmedabad because there are only 80seats and that too 40 seats reserved for the  gujarat students so there is too much competition.

So you can try for soms different college . Btw your class 12th % is not too good to fetch you a good college.

All the best!!!!

Hello,Aspirant