India, June 4 -- Hundreds of residents across multiple housing societies in Ahmedabad's Ghatlodia area were taken ill, complaining of diarrhoea and vomiting, over the last four days after consuming contaminated water, officials and residents said.

According to officials, a leaking pipeline led to mixing of sewage with the Narmada water supply to the area.

Residents said they first flagged the problem on Friday, but the Ahmedabad Municipal Corporation brushed aside complaints through Saturday. Repair work began only past midnight, and when supply resumed Sunday morning the water still carried a foul smell, forcing a second round of repairs.

Ahmedabad municipal commissioner Banchanidhi Pani said, "There are around 50 cases reported at th...