Diploma

First option is to clear 10+2 exam and then apply for B.Sc or BHM in hotel management. But in case you are not willing to give 12th exam again then on the basis of 10th class result you can do a diploma of 1 year and then go for higher degree in hotel management. Universities offering diploma are Lovely Professional University, BHU, JNU etc.

Somesh, admission to B.Tech lateral entry in Manipal is based on their entrance test which was on 2nd June and 7th June. Check the link below
http://manipal.edu/mit/programs/program-list/btech/btech-lateral-entry.html
There are many other good universities where admissions are still going on. Their admission criteria is LEET score or their own test or your marks in previous qualifying exams. Most of them offer good placements. Some even offer scholarships.
Check the websites of some good universities for more details.
Good luck.

No. only PGDM or PGPM of 2 years full time that's too granted equivalence status by AIU I.e. association of Indian Universities are only equivalent to a PG degree. any distance learning, parr time, online PGDM not at all equivalent to a master's degree. other than management programme, AIU has not granted any PG Diploma equivalent to a master's degree. Getting job depends on what institute you choose and what campus placement they offer and subject to fulfilling other conditions. Remember, even if the PG Diploma has been approved by AICTE, it is not equivalent to a PG degree

u should complete Your degree in distance/regular mode in Your favourite subject-opportunities vl increase
then think for career options

You are eligible for maximum colleges in Pune, and do opt for lateral entry in engineering colleges , for colleges check link : https://engineering.shiksha.com/be-btech-courses-in-pune-ctpg

PG Diploma courses in Canada do not require GRE scores. A GRE will help if you apply for a full fledged research oriented Master's.