G.G Automotive Gears Limited(GGAG) was established in February 1974 for manufacturing of gearbox housings for automobile load carriers.

In 1979, a need arose in Indian Railways to indigenise gears and pinions of electric locomotives. GGAG proposed to meet the requirement and started heading towards the development of gears and pinions for Indian Railways.

GGAG Succeeded in introducing its first product to western Railway and then to Central Railway in September 1981,the Eastern Railway in the year 1982, Southern Railway in 1983 and other Zonal Railways also joined to form an unending association thereafter.

In September 1995, India’s diesel-electric locomotive manufacturer Chittaranjan Locomotive Works (CLW) recognised and certified GGAG as a quality loco gear manufacturer and honoured it with its valued order and today GGAG is the only major supplier catering to its 90% requirement for all kinds of gears and pinions.

In due course, GGAG evolved itself as the most reliable manufacture of gears and pinions for diseal locomotives for all Zonal Railways and OEM diseal locomotive works.