Now India is providing this energy star system called BEE (Bureau of Energy Efficiency) under government of India control with number of stars provided as a label to the various electronic machines and peripherals as listed by BEE.
The more number of stars indicates, the less power consumption and so greater electricity can be saved.
The energy star specification system differ with each item and are set by either environmental protection agency or the department of energy decided by the Indian BEE system
Every Tuesday and Thursday morning at 8 o'clock if you listen to AIR FM Gold, a special program is aired for this called "Bachat Ke Sitare". If you listen to it, you will get to know about energy efficiency in a better way.
Thanks & Regards,