Dear Sushant, 

Your marks are good that will surely help you to get Electronics and Communication Engineering branch in National Institute of Technology, Jamshedpur.

And as far as Computer Science Engineering, there is very good chances for you to get Computer Science Engineering in National Institute of Technology, Jamshedpur.

Therefore you should not worry about it and wait for fruitful results. 

Hello dear, 

According to your marks in jee mains your percentile will be expected in between 97-98 and your general rank will approximately close to 28k and your category rank will be close to 2k and with this rank you will definitely get seat in CSE or ECE n Nit jamshedpur.