Civil Engineering

You need to clear your backlogs in order to pursue a PG course.

To become an entrepreneur one doesn't need to pursue MS. Instead you could pursue MBA which helps you to learn strategies and techniques to handle a corporate and to manage it effectively. But if you're interested in pursuing MS you can become an entrepreneur after completing your course. But I would recommend you to go for MBA either in India or abroad for entrepreneurship.
List of best MBA institutions in India:
1. NIT, Trichy
2. Amrita university, Coimbatore
In abroad:
1. Standford University, US
Hope this answer will help you.

Yes, definitely, but your marks should be good to pursue in a good college and you will be admitted to 2nd semester directly, I mean through lateral entry.

Some of the best options comprise:
BITS Pilani
PSG College of Technology
Sardar Vallabh Bhai Patel Institute of Technology
VIT
SRM University
LPU

First, you have to choose the country in which you want to study. Then, you can select the universities that you want to apply in. If you want to study in US for Master's degree, then you have to write GRE and give TOEFL.

Yes, definitely. But, you should have good IELTS score.

Yes, COEP is the best college you can get in CET exam.