Chennai :

To create environmental awareness in Saidapet, three teams — the Eco-friendly, the Blue Boys and the Go-Green — were started in Fathima Matriculation Higher Secondary School.

The Blue Boys team contributed with a water alarm.  Afrith of Class 10 invented the alarm.

One day when Afrith was alone at home, he saw water overflowing from the tank, which led to the invention.  He decided to create an alarm to alert people when water overflows from the tank.

source: http://www.thehindu.com / The Hindu / Home> News> National / by S.N. Vijetha / New Delhi – November 11th, 2014