Hello Manoj,
As you know to get admission in any college,the opening and closing varies from cvollege to college. For getting ECE branch rank also varies.Closing ranks are different for different college and for different branches.You can go through the following link to know more to get admission and about closing rank for your category also-
https://engineering.careers360.com/articles/nits-cutoff-for-btech-electronics-communication-engineering