With the passage of time rainfalls causes filling building with water gradually. The area was now under the attack of mosquitos. Rather than using sprays and other pesticides, People give a unique idea.
Freshwater fish were putted in the water to eat the insects. You can hear the voice of fishes splashing in the water even if you are near the building. People are not allowed to though wastes in it.
Here are some photos:
via Daily mail.