Residents of India's high-tech hub of Hyderabad were wading through knee-deep water surging through the streets.
The local Disaster Management Department said evacuated residents were sheltering in 178 camps, while relief workers in boats and helicopters were working to help or rescue hundreds of thousands stranded by floods that have swamped both coastal and inland regions along rivers.
Both Andhra Pradesh and Orissa were hit two weeks ago by a powerful cyclone that prompted authorities to evacuate nearly a million people. Cyclone Phailin destroyed hundreds of thousands of homes, many of them simple huts made of mud, wood and thatch, while causing hundreds of billions of dollars in crop damage.
India's Meteorological Department on Saturday forecast the rains to continue for at least another day.