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Since its beginning, Sigma group has quickly developed through a fruitful solidification technique with a number of noteworthy acquisitions. During the years Sigma group has emerged as a thriving and strong steel enterprise, due to its diligence and dynamic policy in combating the challenges in the present competitive economy.


Sigma group’s superior design, engineering, and quality manufacturing process provide the ideal strength and flexibility required in today’s construction industry. All our products are of the best quality and meet the international quality standards.

We strongly believe in continuous improvement and progressive strategies to attain the status of an internationally credible manufacturer and exporter brand.

Total quality assurance, on-time delivery and a team of experienced professionals are the major strengths that have enabled us to become market leaders in India.

The company has a complete in-house infrastructure with ultra-modern facilities and equipment for the production of TMT. We have a world-class infrastructure and highly skilled manpower. Our product is delivered at economic prices conforms to international standards.

Our dedicated pursuit of latest technology and intensive in-house R&D over the years has made us the most cost-efficient manufacturer in India.

Our company executes a thorough review and testing handle to form beyond any doubt our customer gets a product that matches the most noteworthy guidelines of quality and consistency.

We follow stringent quality regimen throughout their establishments to serve the interest of customers in a better and more efficient way. Integrity and customer satisfaction is our topmost priority and we strive to fulfill the requirements of our clients without compromising on quality and time. We have been always committed towards our customer satisfaction. We have our satisfied customers all around the country. Our well capable team works round the clock to get the best quality products.

Our Story

Established in 1991, under the strong & visionary leadership of Mr. N.K. Jain, today the Sigma group has emerged as a large, growing, competitive organization by delivering quality material through innovation, excellence and dedication.

The group has its headquarters in Kanpur, India and comprises five operating companies namely Kundan Castings Private Limited, Sadahari Shakti Private Limited, Shree Radhey Radhey Ispat Private Limited, PSPN Synergy Private Limited, & Sigma Castings Limited who works in business sectors of engineering, materials and energy.

Guided by a philosophy to produce safe and sustainable products, it is a pioneer in quality products, operating with cutting-edge technology in order to meet the stringent requirements of its reputed customers.

The company has an intense understanding of the customer’s needs, empowering it to reliably convey state of craftsmanship items. In line with ourcore business philosophywe are committed to giving great quality products and services at the foremost competitive costs.