PATNA, India, May 27 (Reuters) - At least 100 people were admitted to hospital on Tuesday after inhaling chlorine gas leaking from a water treatment plant in a township in eastern India, officials said.

Residents of the Jamshedpur township, run by Indian car maker Tata Motors, complained of dizziness as the gas drifted into their homes, many rushing into the streets and falling unconscious, police said.

"Some of them fell to the ground from dizziness, but there is no need to panic as we have alerted doctors and nurses to tackle the situation," said Ganesh Kumar, a senior government official speaking in Jamshedpur, one of the main towns in Jharkhand state.

Tata Motors said the situation was under control.

"There was a leak in the chlorine filtration facility of the water supply system. The leak has been successfully plugged," a Tata Motors spokesman said.

But officials said they were plugging a second leak, inspecting the plant for further leaks and evacuating people.

In one of India's worst industrial disasters in 1984, a toxic gas leak at a pesticide plant in the central city of Bhopal killed nearly 15,000 people and affected half a million. (Writing by Bappa Majumdar, editing by Tim Pearce)

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