As the government has now made it obligatory for Indian and International manufacturers to show radiation level on the devices so the usage of mobile phones in India will soon become much secure. It has been reported that all mobile phones which will be in the market after September 1 this year will now have a tag showing SAR information on them. This is applicable for both international as well as Indian origin based handset manufacturers. The fixed SAR level is set for Mobile Handsets by The Department of Telecommunications i.e. 1.6 Watt/Kg. According to the government instructions, all the manufacturers have to make the necessary changes in the design, software and packaging in compliance with the instructions.
Researchers have suggested that these radiations from mobile phones can cause cancer. Still there are some doubts on the exact effect of mobile phone radiation on humans.
This step taken by the government can be seen as more of a preventive step.

Source : Themobileindian