asphyxiation while cleaning a sewer line here, police said today.
Anil, Hemant and Umesh were working in a sewer line connection when a toxic gas leaked.
An FIR has been registered against five persons including the owner of a private company - H S Bharana, G S Bharana, Devender Kumar Jha, Vivek Gupta and Sunil Khajuria, they said.
An investigation in this connection is on, police said.