Hello aspirant,
Unfortunately, based on the information provided, it's highly unlikely that you would be eligible for the Mukhyamantri Medhavi Yojana due to following factors:

Gap Year Restrictions: Most scholarship programs, including the Mukhyamantri Medhavi Yojana, have specific guidelines about academic breaks. A three-year gap is generally considered too long.

Percentage Criteria: While your 82.3% in 12th board exams is good, it's crucial to check the exact percentage requirement for the scheme. Some scholarships might have a higher cutoff.

Income Criteria: There are usually income limits for beneficiaries of such schemes. If your family income exceeds the specified limit, you might not be eligible.

Domicile: You should be a permanent resident of the state where the scheme is offered to be eligible.

Remember, while a three-year gap might be a challenge, it's not impossible to find financial support for your education. There are many other scholarships and financial aid programs available, so don't get discouraged.