It seems like you're asking about the eligibility criteria for a particular exam or course.

Could you please provide more context or clarify the following:

1. Name of the exam/course: What exam or course are you referring to?

2. Eligibility criteria: Are you asking about the minimum percentage required in 12th standard or the subject combinations?

Assuming you're asking about the eligibility criteria for a undergraduate course, here's a general scenario:

- Minimum percentage: A minimum percentage of 55% in 12th standard is a common eligibility criterion for many undergraduate courses.

- Subject combinations: Students are often required to choose a combination of subjects, typically 5-6 subjects, including compulsory subjects like English, and elective subjects like Physics, Chemistry, Mathematics, Biology, etc.

Please provide more information or clarify your question so I can give you a more specific answer.