Engineering Ranking

Although all these branches are good. Electronics and Communication engineering is specialisation of electrical engineering. These become separate branches few decade back. B.Tech Telecommunications is good branch with lots of opportunities.

RV College of Engineering
IIIT,Bangalore

Nowadays, petroleum engineering can be considered the best in comparison with mechanical engineering.
Petroleum engineering has more job opportunities as there are less students in petroleum engineering than mechanical engineering.
Also it's depend on your own interest.
If you have interest in Mechanical Engeneering then Mechanical Engeneering will be best for you !
All the Best :)

Both BE or B.Tech Petroleum Engineering are similar degrees. It's only nomenclature difference.

Go through the link :
https://www.shiksha.com/top-engineering-colleges-in-india-accepting-jee-mains-score-rankingpage-44-2-0-0-6244

Some of the best colleges in Karnataka for mechanical engineering:
RVCE
PESIT
BMSCE
BIT
RAMAIAH INSTITUTE
MVIT
DAYANAND SAGAR
JSS ATE
MVJCE
SJBIT
CMRIT

Check link :
https://engineering.shiksha.com/be-btech-courses-in-pune-ctpg

RV, PESIT, NIE and Dayanand Sagar are the best colleges to pursue engineering in Bangalore.

RV, PESIT, NIE Mysore, etc. all are good for engineering.

Based on current market trends computer science engineering has more scope and better placement opportunities. With all these new startups and MNCs coming to India CSE is a branch where you want to be in coming 4-5 years. Mechanical engineering has its own perks, a career in ME allows you to build a better future for you, and for the world. ME might not provide you a high paying job initially, but over the time with your experience you can grow.
Both the branches have scope and it all depends on your dedication.