Unfortunately, they succumbed to the conditions inside the tank, and two others attempting to rescue them also lost consciousness, according to HL Rathod,
Two labourers fell unconscious while cleaning the septic tank, and two others who tried to rescue them too fainted, said an official of Pansala police station.
The deceased worker's younger brother Deepak Vegad raised questions about his death and asked why the supervisor allowed him to enter the tank when a jetting machine was being used at the site.
A fire brigade officer said that methane gas might have accumulated inside the tank, which could have claimed their lives.
The duo had stepped into the septic tank to remove the support beams when they became unconscious. The tank has two manholes and Suman and Saffique went in through one of them.
Gowda told the police that he was out of town and would visit the police station soon.
A 58-year-old woman died after falling into a septic tank and crushed under a pile of stone chips while plucking flowers at Chuna Bhati Gali in Jobra here on Friday morning.
The concrete slab cover of the septic tank which her family claimed to have been abandoned was in dilapidated condition.