DOT (Department of Telecom) has launched a app called Tarang Sanchar.
This app lets you know the amount of radiation that is caused by the mobile towers in your place. So, in case your going to buy a land close to the mobile towers and your worried about the radiations that it will emit. You can now know if it is beyond the human permissible limits.
The app is available both in App store as well as Play store.