There are few states like Rajasthan, UP etc which provide admission on the basis of 12th percentage so you can try there and I would also suggest you to give entrances like Jee Main, BITs, VIT, SRM, Manipal etc, if you want to get admission in B.Tech.

For more information about Engineering entrances, you can go through below website -

http://www.engineering.careers360.com

Good Luck!!!