India's Bengaluru is fast running out of water, and a long, scorching summer still looms

Bhavani Mani Muthuvel and her family of nine have around five 20-liter (5-gallon) buckets worth of water for the week for cooking, cleaning and household chores.

"From taking showers to using toilets and washing clothes, we are taking turns to do everything," she said. It's the only water they can afford.

A resident of Ambedkar Nagar, a low-income settlement in the shadows of the lavish headquarters of multiple global software companies in Bengaluru's Whitefield neighborhood, Muthuvel is normally reliant on piped water, sourced from groundwater. But it's drying up. She said it's the worst water crisis she has experienced in her 40 years in the neighborhood.

Bengaluru in southern India is witnessing an unusually hot February and March, and in the last few years, it has received little rainfall in part due to human-caused climate change. Water levels are running desperately low, particularly in poorer areas, resulting in sky-high costs for water and a quickly dwindling supply.

City and state government authorities are trying to get the situation under control with emergency measures such as nationalizing water tankers and putting a cap on water costs. But water experts and many residents fear the worst is still to come in April and May when the summer sun is at its strongest.

The crisis was a long time coming, said Shashank Palur, a Bengaluru-based hydrologist with the think tank Water, Environment, Land and Livelihood Labs.

"Bengaluru is one of the fastest growing cities in the world and the infrastructure for fresh water supply is not able to keep up with a growing population," he said.

Groundwater, relied on by over a third of the city's 13 million residents, is fast running out. City authorities say 6,900 of the 13,900