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குறியிடப்பட்ட PDF-இல் பச்சை நிறத்தில் குறிக்கப்பட்ட ஒவ்வொரு பகுதியும், அதனுடன் உள்ள விளக்கமும் — மொத்தம் 32 புள்ளிகள்.
- 1zero tolerance towards illegal miningப.2
The stated policy is zero tolerance towards illegal mining, backed by digital mineral management systems.
- 2G.O.(Ms).No.387, Industries Department, dated 24.03.1983ப.3
The Directorate of Geology and Mining was formed by G.O.(Ms) No.387 of 24.03.1983 under the Industries Department.
- 3G.O.(Ms).No.16, dated 07.01.2022ப.3
It moved from Industries to the new Natural Resources Department by G.O.(Ms) No.16 of 07.01.2022 - a recent administrative change worth noting.
- 4Mines and Mineral (Development and Regulation) Amendment Act, 2015ப.6
Since the MMDR Amendment Act, 2015 every major mineral concession must go through auction; exploration follows the Mineral (Evidence of Mineral Contents) Rules, 2015.
- 5National Mineralப.6
Rs.4.99 crore from the National Mineral Exploration Trust is buying modern exploration tools and laboratory equipment.
- 6Geo-Technical Cells have been set upப.8
Geo-Technical Cells in the Nilgiris, Kodaikanal, Tiruvannamalai and Tirunelveli identify landslide-prone hill areas and advise district administrations - 250 geo-technical reports in April-June 2026.
- 7MiMaSப.9
The Mineral Management System (MiMaS) portal issues quarry licences, transport permits and transit passes online.
- 8major minerals, atomic minerals, critical & strategic minerals and minor mineralsப.10
The four-way classification under the MMDR Act, 1957. Hydrocarbons - crude oil and natural gas - fall instead under the Oilfields (Regulation and Development) Act, 1948.
- 9Beach Sand Minerals such as Garnetப.10
Atomic minerals here are the beach sand minerals: Garnet, Rutile, Ilmenite, Zircon, Leucoxene, Sillimanite and Monazite.
- 10Graphite, Tungsten, Molybdenum, Platinum groupப.10
Critical and strategic minerals in Tamil Nadu: Graphite, Tungsten, Molybdenum, Platinum group elements and Rare earth elements.
- 11multi-colored granite, black granite, rough stoneப.10
Minor minerals include multi-coloured and black granite, rough stone, silica sand, quartzite, dunite, calcite, lime kanker, fire clay, gravel, earth and pebbles.
- 121490ப.12
Rough stone dominates by count: 1,490 of the 1,803 operative minor mineral quarries. Major minerals number only 91 but cover 2,01,615 hectares because of oil and lignite.
- 13Tamil Nadu secured 3rdப.13
Auctioning 22 limestone blocks in a single phase put Tamil Nadu 3rd nationally, with Ministry of Mines appreciation. Rs.22.71 crore came in as 20% upfront payment from 10 Ariyalur blocks.
- 144395.68ப.15
Mineral revenue jumped from Rs.1,931.73 crore in 2024-25 to Rs.4,395.68 crore in 2025-26 - the Mineral Bearing Land Tax explains most of the leap.
- 15Mineral Area Development Authorityப.16
In Mineral Area Development Authority v. Steel Authority of India (25.07.2024) the Supreme Court held that a State is competent to tax mineral-bearing land.
- 16Tamil Nadu Mineral Bearing Land Tax Act,ப.16
On the strength of that judgment the Tamil Nadu Mineral Bearing Land Tax Act, 2024 and Rules, 2025 were enacted, and MBLT has been collected since 04.04.2025 - Rs.2,265 crore in 2025-26.
- 17District Level Task Force committeeப.16
Enforcement structure: District Level Task Force under the Collector and Taluk Level Task Force under the Tahsildar, drawing in Revenue, Police, Mines, Pollution, Forest and Water Resources.
- 18Regional flying squadsப.17
Regional flying squads operate at Madurai, Tiruchirappalli, Villupuram, Salem, Coimbatore and Tirunelveli.
- 19212 illegal quarries were detectedப.17
April-June 2026: 212 illegal quarries detected against 147 a year earlier - 44.22% higher; 1,307 vehicles seized and 1,082 FIRs registered.
- 201,085 quarries have been surveyedப.19
Drone surveys of geo-fenced leases have covered 1,085 quarries, finding violations in 315 and imposing Rs.300.76 crore of penalties, of which Rs.34.49 crore has been collected.
- 21LiDARப.19
LiDAR-mounted drone surveys are planned for undulating and water-logged terrain, where depth is hardest to assess.
- 2249 weighbridgesப.20
49 weighbridges at major mineral leases in ten districts are integrated with the MiMaS portal; minor mineral lessees follow in phase two.
- 23AIS-140ப.20
AIS-140 standard GPS is mandatory in mineral-carrying vehicles - 12,138 fitted and linked to MiMaS, with Google Maps real-time monitoring being added.
- 24Green Fund are being collectedப.21
The Green Fund, collected from minor mineral leaseholders, pays for reclamation, restoration and rehabilitation of abandoned quarries - Rs.314.75 crore so far.