Since 1984, OECC has built civil structures and fabricated mechanical systems for NPCIL at five of India's nuclear power stations. Two generations now lead the company together.
Nuclear power runs around the clock and emits about as much carbon over its life as wind. It has one of the lowest death rates per unit of electricity of any source. Every figure below comes from a peer-reviewed or intergovernmental source, cited under the chart.
Between 1971 and 2009, by replacing fossil-fuel power, nuclear plants worldwide avoided
64 billiontonnes of CO₂-equivalent emissions
1.84 milliondeaths from air pollution
Kharecha, P.A. & Hansen, J.E. (2013). Prevented mortality and greenhouse gas emissions from historical and projected nuclear power. Environmental Science & Technology 47(9), 4889–4895. doi:10.1021/es3051197
A cooling tower releases warm water vapour from the plant's cooling circuit. Nothing is burned to raise a nuclear plant's steam, so there is no combustion smoke.
In 2024–25 India's reactors generated a record 56,681 million units, about 3.1% of the country's electricity, and avoided around 49 million tonnes of CO₂. The target for 2047 is at least 100 GW, more than eleven times today's capacity. Each new unit starts with excavation, foundation rafts, containment structures and kilometres of fabricated piping: the work OECC does.
Gigawatts installed, by year each unit entered commercial operation
Gigawatts
On a nuclear site, every pour, weld and fabricated component is inspected against the drawing before it is accepted. OECC has worked to that standard since 1984.
OECC was founded in 1984 by Ram Niwas Sharma and Sri Niwas Sharma. The first generation carried out civil and mechanical works at Rawatbhata (RR site) Units 3 and 4 and at the Narora, Kaiga and Kakrapar sites, earning the company its place on NPCIL projects, where quality assurance comes before speed and a contractor is only as good as its last inspection.
Dheeraj Sharma, Pankaj Sharma and Deepak Sharma joined the legacy in 2014 and stepped into key leadership roles by 2022, with all generations remaining actively involved. The second generation has carried the company's civil and mechanical work to Kaiga, Rawatbhata (RR site) and Kudankulam, and is taking on larger packages as India expands its nuclear fleet.
Two founders and three directors. All five remain actively involved in OECC's work on NPCIL sites.
“When one spends forty years erecting monuments of atomic power, one realises that true greatness isn't measured by the height of the towers, but by the absolute peace of mind of the nation sleeping beneath its shadow.”
“A true builder of India's nuclear triad doesn't measure success by balance sheets alone, but by the clean gigawatts delivered securely to the national grid, fueling India's industrial heartbeat.”
“As India races toward net-zero targets, base-load nuclear energy is the ultimate anchor. Our generation's responsibility is to scale nuclear capacity safely, swiftly, and seamlessly into India's green grid. Monsoons, geological surprises, and intricate regulatory approvals will test your soul before the first dome is lifted. If your resolve isn't anchored deeper than a reactor foundation, the nuclear sector will wash you away.”
“We carry the heavy armor of a legendary 40-year nuclear legacy, but we run with the hunger, agility, and tech-driven vision of modern nation-builders. That is how empires endure.”
“In commercial construction, a millimeter is negotiable. In nuclear infrastructure, a fraction of a millimeter is the boundary between safety and catastrophe. Forty years have taught us that excellence is not an act; it is our non-negotiable religion.”
OECC has carried out civil construction and mechanical fabrication at these nuclear power stations, from Rajasthan to the southern tip of Tamil Nadu.
Rawatbhata, Chittorgarh district, Rajasthan (RAPS and RAPP)
Narora, Bulandshahr district, Uttar Pradesh (NAPS)
Near Vyara, Tapi district, Gujarat (KAPS and KAPP)
Tirunelveli district, Tamil Nadu (KKNPP)
Kaiga, Uttara Kannada district, Karnataka (KGS)
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