7,769 government schools with no students employ 20,000 teachers, costing ₹1,800 crore yearly; UP (2,890), Bihar (1,350) lead.
Rural migration, low birth rates drive issue; average 2-3 teachers per school paid ₹4-10 lakh annually.
Centre pushes closures/mergers under PM SHRI review, teacher reallocations, and building repurposing by December 2025.