RATUPUN ENGINEERS PVT. LTD. , the youngest amongst the `NAG’ Group of Industries, was established in the year 1987 with the objective of manufacturing precision and specialized fastening systems. It started its operations in Kolkata with the production of HELI LOCKNUTS. Thereafter, a full-fledged production unit was set up at Bangalore with custom-built machineries to manufacture SCREW (WIRE) THREAD INSERTS, an integral component of Heli Locknuts.

The Company, managed by a motivated team of qualified technical and management personnel who have vast experience in the field of mechanical engineering, has been able to earn a high degree of reputation and goodwill over the years by manufacturing and selling products of the highest quality.

The product HELI LOCKNUT is marketed under the brand name NAG and is consumed in large quantities all over India by industries from all spheres like Railways, Heavy Engineering, Machine Tools, Power Sector, Diesel Engine, Automobile, Plastic Extrusion, Pumps & Valves, etc.

The Company is constantly endeavoring to uphold customer satisfaction by providing a blend of quality and cost effective solution to the day-to-day problems being faced by the engineering industries. The core competency of the `NAG’ Group of Industries lies in its ability to resource quality material at the correct price and manufacture products as per customers’ requirements.

The Company has its Registered Office in Kolkata, with branch offices in Bangalore and Lucknow. It is registered as a Micro Scale Industry with DIC, Kolkata.