Flooding that has devastated vast areas of South Asia is the worst in living memory says the aid agency UNICEF. Every year the region is hit by heavy rains, but in India alone government figures show well over a thousand people have died since June, the start of the monsoon season. Efforts have been stepped up to drop aid parcels by air to an estimated 12 million people stranded in the states of Bihal, Assam and Uttar Pradesh. Hospitals are struggling to cope with the huge number of cases of waterborne diseases. It’s a similar story in Bangladesh, where seven million people are thought to be marooned. Around 70 people have died there in recent days. It has been raining mercilessly in the region for the last three weeks and some rivers have seen their levels rise by up to 10 meters. Nearly 40 percent of Bangladesh is under water according to officials. And Nepal has also been badly affected by the monsoon rain, which is forecast to continue until September.