Ludhiana, 30/4: Eleven people died after inhaling toxic gas in the city’s thickly-populated Giaspura area on Sunday, police said.
Four more people, who were taken ill, were undergoing treatment at a hospital, they said.
The source of the leakage and the type of the gas are yet to be ascertained, they added.
However, Ludhiana Deputy Commissioner Surabhi Malik said it was likely that some chemical reacted with methane in manholes.