Congratulations for scoring 80% in your CBSE Boards and for any government funding technical institute(gfti) you will have to score minimum 75% in Boards means for getting any NITs and even IITs you will have to score 75% in Boards. If you are looking for DTU and NSIT, These both are one of the best colleges for Engineering, then you need just  65% in Boards. And You had scored now 80% which are very good marks for NSIT and DTU. One also needs to score 10000-11000 Rank in JEE Mains means an approximation of 250 Marks.

If you want admission in other colleges on the basis of JEE Mains Marks you can choose JEE MAIN PREDICTOR as being provided by Careers 360 only at a very nominal price. You will be provided with all the details of the colleges with the best branch. You can use that it is really very good and you can check and explore various colleges and choose the best college.

https://engineering.careers360.com/jee-main-college-predictor?icn=jee-main-clgpd_landing-page&ici=prediction-section_c360-home