MBA/PGDM

You can apply for faculty/assistant faculty position in private B-Schools. Based on your performance in the interview, you can very well start your teaching career. Another option is to go for Ph.D as Ph.D students are given teaching opportunities during their course.

It offers 2 MBA courses MBA-Full Time and MBA-Financial Administration. There is nothing like dedicated 2years course only for HR.

Experience is often necessary for executive MBA programs. There are other general MBA programs with work experience as a criterion.
New York Institute of Technology (NYIT), Vancouver, BC (Canada)
Thompson Rivers University, Kamloops, British Columbia. Brock University.
Check out these institutions.

Ideally, you should receive an email specifying about all the things related to the course like start date and everything, you can also visit their official website.

Requirements are:
A four-year Bachelor's degree from an accredited US institution or its international equivalent.
A minimum of two-three years of work experience, depending on your responsibilities.
Resume
Personal Statement
Two letters of professional recommendation.
Proof of English proficiency (TOEFL is the most common requirement- minimum scores: paper-based: 550-=600 and computer-based 213-250).
GMAT score of over 600 (probably the most important thing).

An MBA will surely help you increase your career prospects. I would suggest you do MBA in marketing.
https://www.shiksha.com/mba/colleges/mba-in-sales-marketing-colleges-india

That won't be a major issue. If you get admission in a college. Your low marks could be overlooked if you have a good score or rank in the entrance exam.

Institute of Hotel Management, Catering and Nutrition (IHM). Welcomgroup Graduate School of Hotel Administration. Institute of Hotel Management, Catering Technology and Applied Nutrition (IHM), Mumbai.
Institute of Hotel Management, Catering Technology and Applied Nutrition (IHM), Bangalore.
Click on this link for more college details:
https://www.shiksha.com/hospitality-travel/articles/top-10-hotel-management-colleges-in-india-blogId-10022

MBA/PGDM from a reputed B-School guarantees a good placement provided you have the required skill set for the particular job and are able to demonstrate the same well during the interview.