Tamil Nadu

After May, the admission process will begin for B.Tech in St. Joseph's College, Chennai.

Some of the good colleges that offer B.Sc Information and Technology in Chennai, are-
1. SRM
2. Wisdom School of Management
3. Loyola
4. Mahatma Gandhi University
For more details, please click
https://www.shiksha.com/it-software/colleges/b-sc-colleges-Chennai.

Hindustan University is one of the best university in Chennai, and it is very good for B.Tech in automobile engineering, as it is known for this. So, I think you should take admission in this university.

Welingkar is good in staff, placements, campus life, industry exposure.

Yes, you can join. But, you have to take JEE Mains exam. After this, you can join this college.

Yes, you can opt for the same. You can visit the official website of Mumbai University for detailed information.

You need to appear for the written test conducted by the college. Once shortlisted, you will be called over for the personal interview, based on marks you will obtain in written test. Then comes the final selection. Click this link for more information-
https://www.shiksha.com/college/loyola-college-lc-Chennai-nungambakkam-1108/admission.

Academy of Maritime Education, Hindustan Institute of Maritime Training (HIMT), Chennai School of Ship Management, Tamil Nadu, Sri Venkateswara College of Engineering, Chennai, School of Maritime Studies Vels University, Marina Maritime Academy, Chennai and Coimbatore Marine College, Coimbatore.

List of colleges:
Jetking Infotrain Ltd
Hindustan Institute of Technology and Science - HITS
Ankit Fadia TM Certified Ethical Hacker programme
Indian Institute of Hardware Technology, Anna Nagar
Mazenet Solution Pvt Ltd
National Institute of Network Technology
RJP Infotek Pvt. Ltd. Appin Technology Lab, Chennai.