The government of India has directed mobile handset manufacturers to mention the radiation levels on the handsets starting September of this year.
Earlier this year, the government came out strong on the topic of cell phone radiation and instructed all phone manufacturers to limit the Specific Absorption Rate (SAR) to 1.6 Watt/Kg. SAR is the rate at which a human body absorbs energy due to an electromagnetic field. The rate set by the government of India is 1.6 Watt/Kg per 1 g of human tissue.
http://www.zdnet.com/blog/india/cell-phones-in-india-to-carry-radiation-information/1041