A long-term industrial platform

From limestone to lime, engineered end to end across mining and processing.

The resource that anchors everything

Our operations are anchored in high-purity chemical-grade limestone resources, representing approximately 17.84%* of India’s chemical-grade limestone base and enabling forward integration across mining, processing, and lime production. For our customers, this is not a statistic, it is supply confidence.

Scale ensures:

  • Long-term contract security
  • Stable process planning
  • Consistent chemical input
  • Reduced exposure to raw material volatility
Source: National Mineral Inventory, Chapter 5: Reserves/Resources as on 01/04/2020- Mineral, Indian Bureau of Mines
Reserved and remaining chart
Reserve
17.84%
Remaining National Reserve
82.16%

In gratitude

Mr. Hiroo Makhijani photo
Hiroo Thakurdas Makhijani
1933 – 2023

Among the people who shaped our understanding of lime, Mr. Hiroo Makhijani holds a special place. We came to him as newcomers — without introduction, without connection, and with nothing to offer. Yet he shared the full breadth of knowledge without hesitation. That generosity, so rare in any field, is something we have never forgotten — and his quiet clarity and deep experience left a lasting impression on how we look at materials and processes.

He often reminded us that "Lime making is more of an art than pure science" — and over time, we came to understand exactly what he meant. The philosophy behind Dr Lime owes much to his wisdom and generous spirit.

How we operate

Our platform integrates sourcing, processing, and quality control into a structured system built to deliver defined material outcomes.

Material discipline

Purity begins at the mine through selective extraction and is carried through controlled processing, ensuring consistency in composition and structure.

Principled precision

Precision is guided by method and sustained through measured control, shaping repeatable and dependable material outcomes.

Manufactured to perform

Materials are produced with defined characteristics so that behaviour in application remains predictable, reliable, and consistent over time.

Our structure

We integrate two operational entities within one industrial system. Together, they ensure continuity from source to shipment.

MW Mines

The resource foundation of the Dr. Lime platform. Holding a single-source, high-grade limestone deposit of 80 million tonnes across 3.37 sq km, this ISO-certified operation focuses on selective extraction and precise classification. In a business where quality is determined before processing begins, this secured deposit represents a structural advantage, not just a supply arrangement.

Subaan Lime

The manufacturing engine of the Dr. Lime platform. Operating from a 22-hectare integrated facility, this ISO-certified plant transforms raw limestone into finished products through disciplined processing. From production to shipment, every stage maintains specification standards, ensuring each delivery fulfills the Dr. Lime commitment to customers.

Leadership & governance

Dr. Lime is led by a team responsible for material discipline, operational control, and long-term platform development:

A medical graduate turned entrepreneur, Dr. Raghubir Singh Grewal has founded and scaled companies across mining, marketing & advertising, and healthcare over 35+ years. As Chairman and Managing Director, he defines Dr. Lime Group's long-term vision, driving innovation, operational excellence, and its evolution into a future-ready industrial minerals platform.

Dr. Raghubir Singh Grewal

Chairman and managing director

Dr. H.R. Dandi brings 30 years of experience across the mining and cement industries, with a PhD in Geology, membership of the Mining Engineers Association of India, and over 30 published articles on geology and mineral regulations. As Joint Managing Director, he leads raw material strategy, technology-driven plant operations, and the commercial development of new product lines.

Dr. H.R. Dandi

Joint managing director

A Chartered Accountant (ICAI) with over 35 years in management accounting, tax, audit, and mergers & acquisitions, CA Subodh Kaura leads financial governance, commercial controls, and supply chain coordination at Dr. Lime Group. He drives working capital efficiency, cost control, tax planning, and capital formation to ensure consistent performance and scalable business growth.

CA Subodh Kaura

Director

Ms. Sukhmani Grewal holds an MBA from FMS Delhi and a BBA from Macquarie University, Australia, and brings 15 years of experience in transaction and business advisory at Big Four consulting firms across mining, power, and infrastructure. At Dr. Lime Group, she leads market positioning, project structuring, capital planning, and strategic partnership development.

Ms. Sukhmani Grewal

Executive director

Mr. G.S. Gupta draws on over three decades of leadership in a major public sector bank, where he headed corporate credit and international banking operations. A Postgraduate in Business Administration with a certification in Foreign Trade from IIFT New Delhi, he oversees financial planning, compliance, treasury oversight, and risk management at Dr. Lime Group.

Mr. G.S. Gupta

Head of finance

Mr. Kumbha Ram Choudhary holds a B.Tech in Mining Engineering, a First Class Mines Manager Certificate, and a Surveyor Certificate from DGMS, with 17+ years of specialised experience in limestone sizing and grinding. At Dr. Lime Group, he leads mining operations, resource optimisation, and safe production planning across the extraction value chain.

Mr. Kumbha Ram Choudhary

Head of mining

With 36 years in quality control and laboratory management, Mr. Rajendra Kumar Kumrawat has deep expertise in glass manufacturing, raw material testing, and regulatory compliance across ISO 9001-2015, ISO 15378, and GMP standards. At Dr. Lime Group, he leads quality assurance, laboratory systems, and product consistency across all industrial applications.

Mr. Rajendra Kumar Kumrawat

Head of quality

CS Nitin Kumar is a Fellow Member of ICSI and Associate Member of CPA Australia, with 13+ years of experience including senior roles as Company Secretary and General Manager – Finance at large business houses. At Dr. Lime Group, he advises on corporate governance and secretarial compliance, with extensive expertise engaging NCLT, NCLAT, MCA, SEBI, BSE, and RBI.

CS Nitin Kumar

Corporate Governance Advisor

Become a founding partner

We partner through defined validation phases before scale. Industrial relationships are built on repeatability, not promises.
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Initiate validation process
1

Alignment

Process requirements reviewed and a small trial batch supplied for initial plant testing.
2

Validation

Performance confirmed through documented testing and end-user verification.
3

Scale

Supply scaled to regular industrial volumes with defined quality and monitoring standards.

Building a
lime ecosystem

1

The nature of lime

Lime is not a material shaped by short cycles. In many parts of the world, the most respected lime enterprises have evolved over generations, built on long stewardship of resources and deep familiarity with the material.
2

The Indian context

India holds abundant limestone resources, but scarce in high-grade limestone, yet relatively few mature lime platforms have been developed with this same long-term perspective. Dr. Lime is being built with that horizon in mind, approaching lime not simply as a commodity, but as a material that rewards disciplined processes, responsible resource stewardship, and continuous learning.
3

Expanding the material platform

Over time, this journey may extend into the wider family of lime and calcium-based materials, from industrial lime products to applications in sustainable construction and environmental processes.
4

The long view

Our ambition is to grow steadily into a mature lime platform, reflecting the same depth of material understanding and operational discipline found in the finest lime traditions around the world.

Built for industrial systems where stability is non-negotiable

We work with engineers, procurement teams, process operators, and long-term capital partners in industries where operational reliability defines value.
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