Two sanitation workers drowned in a sewage chamber in suburban Mumbai's Goregaon area, the police said on Wednesday. Last month, five deaths of sanitation workers had been reported in the city. The latest tragedy took place near Hub Mall in Goregaon (East) on Tuesday afternoon, a police official said. The victims were identified as Arunkumar Patel, 43 and Manoj Goswami, 41.