Tamil Nadu

Yes, but only one or 2.
Directorate of Distance Education, Alagappa University, Karaikudi
School of Distance Education, Bharathiar University, Coimbatore
Check this link too-https://bit.ly/2CXXyUZ

The UKCAT stands for UK Clinical Aptitude Test & is required for entry to a medical/dentistry degree at many British universities. The UKCAT is a computer-based test taken at Pearson Vue Centres between July & October every year. If you are preparing to self-study and learn at your own pace, Trinity

For which college are you seeking admission?

Duration of Law course will remain the same i.e. 3 years. Thanks.

Please refer to the reviews below for details :
https://www.shiksha.com/university/academy-of-maritime-education-and-training-chennai-2973/reviews

Karpagam Academy of Higher Education provides M.Sc in astronomy. https://kahedu.edu.in/?page_id=197.

Admission is through counselling based on rank obtained in Tamil Nadu Common Entrance Test (TANCET) and not gate , for more details check out the link below :
https://www.shiksha.com/architecture-planning/course/m-arch-landscape-architecture-school-of-architecture-and-planning-anna-university-guindy

You can check the below link for list of colleges offering Bachelors of Science. You can check the specialisation offered, fees, rating
https://www.shiksha.com/science/colleges/b-sc-colleges-Chennai.