The order is to supply 50 standard floor 12-metre intercity coach e-buses and 500 low floor 12-metre intracity e-buses, K V Pradeep, chairman and managing director of Olectra Greentech Limited, said. "We are proud to partner with the TSRTC in their vision for a sustainable and economical large-scale public transport. The e-buses will be delivered in phases soon. Olectra's pure e-buses will significantly reduce the noise and emission levels in the city of Hyderabad," he said.