Logistics & Supply Chain Management

You can refer the below-mentioned colleges:
Tamil Nadu Open University, Chennai
Institute of Logistics and Aviation Management, Bangalore, Indiranagar
Swami Vivekanand Subharti University, Meerut

Basically, it completely lies on your interest.
For Bcom graduate, Finance is a good option to go for.
I would suggest you to go for top collegs itself, like IIMA, B, C, L, K, JBIMS, Sydeham, etc.
Kindly check the list at below link:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0

Yes, it is a legal institute.

The BBA programme has been developed to prepare students to meet the requirements of organizations in the Logistics & Supply Chain Management sector so as to have a fundamental knowledge of the business operations as well as an understanding of the practical application of the concepts in the chosen areas of Logistics & Supply Chain Management domain.
If you can get good institute than you will get good institute.
All the best!

Your chances to get a student visa for doing PG in SCM or IB do not depend on the type of degree. If you get admission in a recognized University or B-School and meet other visa eligibility criteria you will get a student visa to do a degree.

Yes, you can go for a Diploma course in logistics after HSC

Hi Shyam,
Overall, the following provinces have good and faster provincial nomination programs:
Ontario
Saskatchewan
and New Foundland
For specific information on your area of interest you can check the Skilled Occupation List.

As per your interest, you can also go for the course which has both logistics & aviation: https://www.shiksha.com/aviation/course/b-com-in-aviation-logistics-and-supply-chain-management-sjes-college-of-management-studies-microsoft-it-academy-old-madras-road-bangalore-233853
As the comparison would not be relevant.