Steps taken by NTPC: 1. Optimum utilization of equipment by using latest technologies and upgrading the existing ones. 2. Waste generation has been minimized by maximum utilization of ash. 3. Green belts have been provided for ecological balance and afforestation through special purpose vehicles. 4. Environmental pollution has been reduced by measures like ash pond management, ash water recycling and liquid waste management. 5. All the power stations have ecological monitoring, reviews and online databases.