What Happened
- The Ministry of Mines announced the launch of the 7th tranche of critical and strategic mineral block auctions on March 23, 2026, offering 19 blocks across several states under Mining Lease and Composite Licence.
- The auction targets minerals essential for clean energy (lithium, graphite), advanced technologies (rare earth elements, vanadium, tungsten), fertilisers (phosphate), and strategic/defence industries (titanium, niobium).
- The government's stated aim is to bolster India's self-reliance and reduce import dependence amid ongoing global supply chain disruptions, particularly following China's 2025 rare earth export restrictions.
- The auction uses a transparent two-stage ascending forward auction: bidders compete on the percentage of mineral value they offer to share with the state; the highest percentage wins.
- This tranche also coincides with reforms introduced in 2025-26 allowing Insurance Surety Bonds as alternatives to bank guarantees — lowering the financial barrier for private sector bidders.
Static Topic Bridges
Composite Licence vs. Mining Lease — Mineral Concession Types
India's mineral concession framework under the MMDR Act, 1957 provides for two main types of concessions relevant to this auction. A Mining Lease (ML) is granted for areas where the mineral deposit is proven and the holder has the right to mine and extract ore commercially. A Composite Licence (CL), introduced by the 2021 MMDR amendment, is a two-stage concession combining prospecting (exploration) and mining rights in a single licence — relevant for areas where deposits are indicated but not fully proven. The composite licence reduces bureaucratic delays by eliminating the need to separately obtain a prospecting licence followed by a mining lease.
- Mining Lease: Granted for proven deposits; direct commercial extraction right
- Composite Licence: Introduced via MMDR Amendment Act, 2021; exploration + mining in one instrument
- Prospecting Licence (older mechanism): For exploration only; required separate mining lease thereafter
- Exploration Licence (EL): Introduced by MMDR Amendment 2023; for deep-seated/critical minerals; no automatic mining right, but first right of refusal for subsequent auction
- Auction authority: Central Government (for critical minerals under Part-D); State Governments (for other minerals)
Connection to this news: The 7th tranche offers blocks under both ML and CL — ML for areas with confirmed critical mineral deposits, CL for promising but incompletely explored prospects. This dual-track approach maximises the number of blocks that can be offered.
India's Critical Minerals Strategy — Three Pillars
India's approach to critical mineral security operates across three complementary pillars developed between 2023 and 2025. The first pillar is domestic extraction through the MMDR auction programme. The second pillar is overseas mineral acquisition through KABIL (Khanij Bidesh India Ltd), a joint venture of NALCO, Hindustan Copper, and MECL, tasked with acquiring mining assets abroad. The third pillar is circular economy and recycling — recovering critical minerals from e-waste and industrial scrap through the Battery Waste Management Rules, 2022 and the E-Waste (Management) Rules, 2022. India published its National Critical Minerals Mission framework in 2024-25, integrating all three pillars under a coordinated policy umbrella.
- KABIL: Formed 2019; joint venture of NALCO (40%), HCL (30%), MECL (30%)
- KABIL agreements: Argentina (5 lithium brine blocks), Australia (cobalt, lithium assets), Chile (exploration)
- Battery Waste Management Rules, 2022: Mandates extended producer responsibility (EPR) for battery recycling
- E-Waste Rules, 2022: Targets recovery of cobalt, lithium, nickel, REE from discarded electronics
- Critical Minerals list: 30 minerals (published June 2023); updated from an initial 2022 list of 30
Connection to this news: The domestic auction programme (7th tranche) is the most direct of these three pillars; success depends on private investment flowing into greenfield mineral exploration and extraction in India.
Fertiliser Security and Critical Minerals
The inclusion of fertiliser-related minerals in the critical minerals list reflects a less-discussed but strategically vital dimension: phosphate and potash dependence. India imports nearly 80-85% of its phosphate rock requirement (mainly from Morocco, Jordan, Egypt) and almost 100% of its potash (from Belarus, Russia, Canada). Phosphate is the key feedstock for diammonium phosphate (DAP) fertiliser, which covers about 40-45% of India's phosphate fertiliser consumption. Disruptions to phosphate supply — as occurred briefly during the 2022 Russia-Ukraine conflict and the 2021-22 Morocco export ban — directly threaten India's kharif and rabi crop production.
- India's phosphate import dependence: ~80-85% of domestic requirement
- Potash import dependence: ~100% (no domestic reserves of commercial significance)
- Morocco's share of global phosphate rock exports: ~40% (world's largest exporter)
- India's DAP consumption: ~11-12 million tonnes/year (2024-25)
- Fertiliser subsidy: ~Rs 1.6-1.9 lakh crore/year (Union Budget 2025-26); phosphate fertilisers heavily subsidised
- Russia-Ukraine conflict impact: Disrupted potash supply from Belarus (2022); India diversified to Canada, Israel
Connection to this news: Phosphate-bearing mineral blocks in the 7th tranche directly address this strategic vulnerability; domestic phosphate production would reduce India's exposure to geopolitical supply disruptions in a sector that directly affects food security.
Vanadium and Titanium — Defence and Advanced Technology Applications
Among the minerals in the 7th tranche, vanadium and titanium carry specific strategic significance for defence and aerospace. Titanium is used in aircraft structures (high strength-to-weight ratio), submarine hulls, and missile casings; India's aerospace sector relies on imported titanium sponge (mainly from Japan and Kazakhstan). Vanadium is a key alloying element for high-strength steel (HSLA steel) used in defence vehicles and infrastructure, and also the active material in vanadium redox flow batteries (VRFBs), an emerging large-scale energy storage technology. India has identified titanium-bearing deposits in Kerala (ilmenite, rutile) and Odisha, and vanadium-bearing magnetite in Karnataka and Odisha.
- Titanium: India's ilmenite reserves ~348 million tonnes (4th largest globally); rutile reserves significant in Kerala, Tamil Nadu
- Vanadium: Found in magnetite deposits; Karnataka and Odisha have potential reserves
- HSLA steel: Vanadium as microalloying agent reduces steel weight by 20-30% at same strength — critical for defence vehicles
- Vanadium Redox Flow Batteries (VRFBs): Long-duration storage (4-12 hours); suited for grid balancing
- India's DRDO: Has titanium processing facility at Hyderabad (Defence Metallurgical Research Laboratory)
Connection to this news: Including vanadium and titanium in the 7th tranche reflects the Aatmanirbhar Bharat push in defence manufacturing — reducing dependence on imports for materials that cannot be substituted in critical defence applications.
Key Facts & Data
- 7th tranche: 19 mineral blocks (March 23, 2026)
- Cumulative blocks (post-7th tranche): 65 blocks auctioned since programme began
- Minerals targeted: Lithium, graphite, REE, tungsten, vanadium, titanium, phosphate
- MMDR Act, 1957: Parent legislation; amended significantly in 2015, 2021, 2023
- 2023 amendment: 24 minerals in Part-D for central government-exclusive auction
- Composite Licence: Introduced 2021; combines prospecting + mining in one concession
- KABIL: India's overseas mineral acquisition arm (NALCO + HCL + MECL JV)
- India's phosphate import dependence: ~80-85%
- India's potash import dependence: ~100%
- Titanium ilmenite reserves: ~348 million tonnes (4th largest globally)
- Insurance Surety Bonds: New mechanism (2025-26) replacing bank guarantees in auctions