The year 1989 saw the foundation of Calcutta Springs Limited, which was to become the parent company of one of the largest groups in India, manufacturing for both domestic and export purposes. We are manufacturing a wide range of Castings i.e. Grey Iron Casting, Malleable and Ductile Iron Castings and Spheroidal Graphite Cast Iron Castings (SGCI Castings) for exports. We also supply the complete range of track items to Indian railways. It is an ISO: 9001:2000 certified company. The emphasis is always on delivering products of the highest industry standards at the right time, right place and at the right competitive price. Over the years, the presence of well qualified and experienced team members and constant research work has enabled us to deliver high quality products at the right time and at competitive prices.

CSL has 3 state of the art facilities to manufacture the DI Castings, wherein we have an annual production capacity of 20000 MT per annum, and this is ever improving due to our zeal for expansion. We maintain high standards of quality, timely shipments and customer satisfaction.

We are the members of:

  • Federation of Indian Export Organisation (FIEO)
  • Engineering Export Promotion Council (EEPC)
  • Merchant Chamber of Commerce (MCC)

Our products have been exported to many different countries across the world: USA, Canada, Mexico, UK, Italy, UAE, and other Middle Eastern and European countries.

We have the following certifications:

UL Approval: Underwriters Laboratories

FM Audit Approval

It is an ISO 9001:2015 certified company

We have been chosen for being awarded the Certificate of export excellence by the Engineering Export Promotion Council for our excellent export performance.

Company Mission, Vision, Core Values


Our vision is for CSL to be synonymous with Ductile Iron Castings. To ensure that the value addition made by us to society is in the most eco-friendly way possible by innovating and continuously using more efficient technology.


Our mission is to achieve business excellence by creating a high degree of value addition to all our stakeholders: Customers, Employees, GOI, as well as the society at large. We are committed to work in the true spirit of entrepreneurship by making optimum utilisation of resources, using environment friendly procedures and practices, maintaining highest work ethics, hiring the best people and providing them with a safe and healthy working environment. With the continued support of all our stakeholders, we wish to reach the goal to produce 50,000 MT of DI Castings per annum.

Core Values:

  1. High standard of business ethics
  2. High Integrity in business dealings with all stakeholders
  3. Equable management of all stakeholders

Community building: Team work in factory and office + society + government + world + environment

QC Policy

Our future plans are to develop our capabilities on an international scale. We hope to continue delivering high quality products by undertaking research work at our own laboratories. We are committed to achieving constantly improving professional standards by developing the talents of our workers. We offer training as required by safety and regulating authorities.

Testing & Quality Control

There is continuous improvement in the manufacturing practices and timeline of delivery of our products. While maintaining compliance with ISO 9001 : 2000 standards as well as customer requirements.

We at Calcutta Springs believe in producing top quality castings, which undergo rigorous tests and checks. All our Testing is done 100% in house with all required testing facilities available.

Our Pipe Fittings (Caps, Plugs, Flanges, Bends, Tees, Reducers, MJ Fittings, etc.) are 100% hydraulically tested as per the relevant specifications. Our DI MCCs (Manhole covers, frames, valve boxes, gully grates, etc.) are load tested as per relevant specifications.

The organisation has sophisticated and state of art chemical, physical and microscopic laboratories to test and control the quality.

The testing equipment we have are as follows:

Melting: CE Cup, Dip Tip, Spectrometer

Pouring: Spectrometer and Microscope

Sand Testing: Sieve Shaker, Universal Sand Testing machine, Permeability Meter, Moisture Tester

DPT – Dye Penetration Test Equipment, Ultrasonic Test Equipment

Finished Goods Testing: Hydraulic Testing Machines, Hardness Testing machines, Load Testing Machines, Micro Hardness Tester, Universal Tensile Strength testing machine, Impact Testing machines

Some of the control measures we undertake are frequent checking of LOI, Active Clay, Dead Clay, VM, Mould Hardness, Core Hardness