Examine how successive amendments to the MMDR Act, 1957 (2015–2026) have reshaped India's mineral security and domestic availability of critical minerals like iron ore.

The Mines and Minerals (Development and Regulation) Act, 1957 remains the parent law for mineral regulation [3]. Six amendments between 2015 and 2026 have progressively shifted it from a licensing statute to an instrument of mineral security — expanding supply, easing entry, and centralising fiscal terms.

Reforming allocation and revenue-sharing (2015)

• Made auction the mandatory mode of granting mineral concessions, replacing discretionary allocation and curbing rent-seeking [3].
• Created the District Mineral Foundation (DMF) and National Mineral Exploration Trust (NMET), tying mining to local welfare and to sustained exploration funding [3].

Expanding domestic availability (2021, 2025)

• The 2021 amendment ended the captive–merchant mine distinction, allowing captive mines to sell surplus output — directly enlarging market supply of iron ore for steelmakers [3].
• The 2025 Act removed the requirement of prior Central approval for auctioning composite-licence blocks of iron ore, bauxite, limestone and manganese, compressing auction timelines [1].

Strategic and critical minerals (2023)

• Notified minerals such as lithium and cobalt were brought under a dedicated auction regime, with the Centre empowered to grant exploration licences — an import-substitution response to concentrated global supply chains [3].

Fiscal centralisation and its costs (2026)

• The 2026 Act bars States from levying any tax or cess on mineral rights or mineral-bearing land except as prescribed by the Centre, and invalidates unpaid pre-commencement dues [2].
• This lowers cost unpredictability for producers like SAIL, but raises federalism concerns: land is a State subject, and the retrospective clause sits uneasily with the Supreme Court's 2024 ruling upholding States' taxing powers [2].

Cumulatively, the amendments have made allocation transparent, supply elastic and pricing predictable — the three pillars of mineral security. Sustaining these gains now requires the Centre to prescribe fiscal parameters consultatively through GST Council-style deliberation, so that resource-rich States retain revenue certainty and the reforms rest on cooperative rather than contested federalism.