R.V. College of Engineering

I think, it is difficult, because the students with the rank below 5000 are eligible to get admission into these colleges.

Hello Nikitha,
As I see your rank, frankly speaking, it is very high. For admissions in RV and BMS, you need to be under 1000 and for other top colleges, the maximum rank is 15-18K.

Hello Jagdish,
25000 is a very high rank to get RV or BMS for any branch. Even you are not eligible for Sir M VIT and BIT in this rank.

Use your COMEDK 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack
The result is based on admissions data of COMEDK 2017
Get resources & insights on colleges & courses:
https://www.shiksha.com/b-tech/resources/comedk-college-predictor

Chances are slim, though you have chance to get some decent government college through JEE itself try to get in those.
All the best.

UPES is going to introduce its new branch i.e. CS in machine learning. So it will be good if you want to go for ML.
RV College is also good.
But if you want specialisation, then you should choose UPES.