Can one multinational sell another multinationals products throught its clinics and what are the procedure?

Question

This is with regards to India and what licences are required if they want to sell foreign brands which are not manufactured in India

Answer 1

For your main question: No harm, no prohibition generally. Procedures could be any common trade practice or special arrangements / deals.

For your details to your question: Without knowing the product and its nature, nothing can be said appropriately.

There is some critical info missing in your question. Consult an appropriate professional for legal and commercial answer giving him required details and info.