Discuss the implications of rising sub-national debt on India's fiscal federalism, with reference to a State of your choice.

States now account for over half of general government spending, but borrow under Union-set ceilings and Article 293(3) consent. Rising sub-national debt — consolidated outstanding liabilities of States at 28.1% of GDP in March 2024, projected near 29.2% by March 2026 [2] — therefore strains the fiscal compact between Centre and States. Tamil Nadu, a high-growth but welfare-intensive State, illustrates the tension.

Squeeze on State fiscal autonomy

• Borrowing headroom is fixed by the Centre under Article 293(3); breaching FRBM limits invites conditionalities, converting a constitutional power into an administered permission.
• Untied borrowing space shrinks as committed expenditure — interest, salaries, pensions — pre-empts revenue receipts, leaving little discretionary room [3].

Welfare versus capital formation

• Tamil Nadu budgeted a revenue deficit of 1.2% of GSDP (₹41,635 crore) in 2025-26 [1] — borrowing partly funds consumption, not assets.
• Large redistributive commitments — ₹13,807 crore for Kalaignar Magalir Urimai Thittam and ₹3,600 crore for Vidiyal Payanam free bus travel [1] — are politically irreversible, making expenditure downward-rigid.
• Fiscal deficit held at 3% of GSDP (₹1,06,968 crore) against total expenditure of ₹4,39,293 crore, up 10% [1] — discipline maintained, but with thinning margins.

Distortion of federal incentives

• Off-budget instruments (guarantees, PSU debt) and Centre's 50-year interest-free capex loans, excluded from normal borrowing ceilings, blur true State liabilities [2].
• Uniform ceilings ignore divergent State capacities; the Sixteenth Finance Commission, covering 2026-31, must calibrate devolution and fiscal-performance incentives accordingly [4].

Sub-national debt is thus not merely an accounting concern but a federalism question: it determines how much real policy space States retain. The way forward lies in outcome-linked welfare spending, transparent disclosure of guarantees and off-budget debt, a differentiated borrowing framework rewarding capital-expenditure quality, and revenue-side buoyancy. Cooperative federalism is strengthened when fiscal responsibility and welfare obligations under the Directive Principles advance together, not at each other's cost.