The 7.5% reservation in medical admissions for government school students is currently applicable only in Tamil Nadu, and it benefits students who have studied from class 6 to 12 in state government schools. Since you studied in a government school from class 9 to 12, you would be eligible only if you are from Tamil Nadu, meet the required schooling condition (class 6 to 12), and qualify NEET. However, if you are from any other state, this specific 7.5% quota does not apply, as it is not a national-level reservation but a state-specific policy of Tamil Nadu.