Many cities in India have underground drainage system which requires proper maintenance. The drainage
systems are mostly maintained by the Municipal Corporation in various cities. In most part of the city, sewage workers are
employed for cleaning the drainage system by various corporations. The sewage workers face various issues while
working inside the manhole like exposure to toxic gases and shortness of oxygen due to more presence of methane.
Sewage workers monitoring system monitors the health status of these workers and also they monitor the level of toxic
gases inside the manhole which helps the workers to escape in case of any increase in the gas levels. This system is also used to
detect any blockage inside the manhole and prevents clogging
