IGNOU - Indira Gandhi National Open University

The School of Social Sciences launched a Bachelor in Hospitality and Hotel Administration in collaboration with the National Council for Hotel Management Catering Technology (NCHMCT), Ministry of Tourism, Government of India. This is a three-year degree programme and is based on a collaborative model with courses from the distance learning system and those courses offered by the NCHMCT.
There will be regular classes for learners at all the Institutes of Hotel Management. In addition, all learners will have to complete courses worth 40 credits offered by IGNOU through the distance mode. For admission in this programme, NCHMCT conducts an entrance test at different Institutes of Hotel Management all over the country.
Eligibility critera : 10+2 or equivelant
Upper age limit : 25 years
So from above you can be eligible for asked course on the basis of yours 12th. Being a regular course you must be meet the maximum age requirements as above. Further the admission in B.Sc. HHA are based on an Entrance test (NCHM JEE) conducted by NTA in collaboration with NCHMCT.

The eligibility criteria and related requirements of MBA (Banking and Finance) of IGNOU are given below.
ELIGIBILITY FOR ADMISSION : For admission to the MBA (Banking & Finance) the candidate should satisfy the following conditions:
a) He/She should be a graduate of a recognized University.
b) He/She should have passed the CAIIB examinations of the Indian Institute of Banking & Finance, Mumbai and awarded the requisite qualification/credentials therefor by the Institute.
c) He/She should have been working with the banking or financial services sector for a period of at least two
years.
So from above here is no specific requirement of percentage of marks of graduation but the other requirements like CAIIB and working experience are mandatory. So you can be eligible after meeting the above criteria.