Hyderabad city was once again battered by extreme rainfall of about 19 cms within five hours on Saturday night leaving hundreds of thousands of people in the grip of panic and fear. The bund of a big lake in Balapur collapsed under the pressure of fresh inflows causing massive floods in several colonies under Chandrayangutta.Several colonies in the older parts of the city were inundated following heavy rains.At least 13 people have lost their lives while several others were injured as incessant rains battered Telangana, from past three days