By joining a top engineering college you get good industry exposure. At a good engineering college you get good  placement oppurtunity and also the faculty at a good engineering college is also very good due to which you are able to get good education. Moreover the oppurtunity for co-curricular activities is also very good. Hope this helps.

Hey there

There is a lots of benefit of doing engineering from top engineering colleges in India first is the environment you'll get there which is a very important thing. 

Then the placements etc.

Top engineering colleges in India

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/colleges/ranking&ved=2ahUKEwjqmd3-kLLjAhXz4nMBHUz1D8gQFjAEegQICBAB&usg=AOvVaw3txHd00F2OIdam02F6w7j9

Good luck