CBSE 12th

Hi Vaibhav,
A minimum of 50% is recommended however class 12th scores carry less weightage, your admission will be based on the NATA scores mainly.

Your chances will now depend on MBA entrances such as CAT, XAT, CMAT, MAT etc. The institutes can be predicted based on your scores.

Hi Harsh,
You have to appear for entrance exams for hotel management after your 12th. National council of Hotel Management and Catering Technology conducts joint hotel management entrance exam every year in April for the 800 seats in different Govt institutes in 30 selected cities of India. However there are other exams too specific to different institutes such as BIT Mesra Hotel Management Entrance Exam, AIMA UGAT etc. For more exams please check here -
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/articles/popular-hotel-management-entrance-exams-in-india-2017-blogId-6838

Hi Udaychand,
You did not mention what you want to study or the preferred location, I would therefore suggest you go through the college and course options here:
https://www.shiksha.com/
You will find details related to campus placement etc.

Hi George,
Quite seriously, if you don't know what to do next take out some time and figure out what you want to do. Let me ask you what you mean by 'good job'. What kind of 'job' do you prefer? The answer itself is what you are looking for. Weigh in your likes and dislikes, figure out your interests, which subjects are you confident in, there must be specific subject or area you are good at. It is advisable you speak with your school counselors and understand your areas of strengths and weakness. It is also suggested you take a psychometric test, a number of such tests are available online.

Merit list will be prepared on the basis of best 4 subjects.
But if you belong to general category, it's really difficult to get admission there.
Hope for the best.
Good luck.

Yes, it's possible in private colleges.
You can try for private colleges.
Good luck.

Do you have any career idea?
Fields of interest?
Your stream?

Dear,
If the admission guidelines mentioned that NIOS board can apply for admission, then you should approach top authorities and submit your complaint in written format and same can be submitted to consumer court to file a petition.
All the best.