A China Railway High-speed (CRH) train, built by China CNR Corporation, pulls over at a railway station in Haikou, Hainan province, April 30, 2015. [Photo / IC]

China Railway Rolling Stock Corp Ltd (CRRC) will provide 14 subway trains with 112 carriages in total to Kolkata, India, said the company on Tuesday.

This is the first overseas order that CRRC has received. The train giant, a merger of CNR Corp and CSR Corp, got this order from its subsidiary company - CNR Dalian Locomotive and Rolling Stock Company in February.

As the third-biggest city in India, Kolkatawill replace the old trains that have been running for over 30 years in its south-north subway line which reaches a length of 23.45 km in order to ease the transportation pressure.

According to the company, this is the first time that CNR Dalian has entered the market of South Asia.

CRRC started trading on the Shanghai and Hong Kong bourses on Monday, becoming the world's biggest rail conglomerate in terms of market value and sales.