HYDERABAD, India—A tropical storm weakened after dumping heavy rains overnight in parts of southern India off the Bay of Bengal as more than 50,000 people evacuated to government-run camps, officials said Saturday. No loss of life or major damage has been reported so far from the rain-hit areas of Andhra Pradesh state. Kanna Babu, a state commissioner for disaster management, said 54,000 people who evacuated on Friday from vulnerable areas were waiting in nearly 200 state-run relief camps for the weather to clear before returning to their homes. Authorities shut schools, canceled trains and anchored fishermen’s boats in the affected areas until Sunday. The storm is likely to further weaken later Saturday and curve toward eastern Odisha state before making landfall on Sunday as a deep depression, the Indian Meteorological Department said. Scientists say that cyclones and powerful storms in the Indian Ocean are becoming more frequent and intense due …