India-based Reliance ADA Group is planning to develop coal mining infrastructure in Indonesia with an investment of about $5bn to $10bn.

The firm has acquired a coal mine on Sumatra island and is planning to build infrastructure, including a railway line, to transport its coal to the nearest port.

The firm will also invest in the new Jakarta rail line to the airport, reports Reuters.

In January, several Indian firms signed agreements totaling $15bn with Indonesia, to build infrastructure projects, including airports and steel plant to help the country overcome the lack of infrastructure development.