The deceased has been identified as Manmohan Kamath, they said.
According to Mico Layout Police, Kamath, a resident of Madhuvan Apartment in NS Palya near BTM 2nd Stage, had tried to use a motorised pump to clear water out of his house on Monday evening.
“When he connected the pump to a socket, there was a short circuit, leading to his electrocution,” a police officer involved in the investigation said.
Meanwhile, Dinesh (12), son of a Nepalese man employed at the apartment complex, who was standing near Kamath, was also electrocuted, police added.
The two were declared dead by doctors at a hospital. Unnatural Death Reports (UDRs) will be registered in both cases, the Station Head Officer confirmed.
So far, pre-monsoon rains have claimed three people.
Earlier on Monday, Sasikala (35) died when a compound wall fell on her while she was sweeping at a company within the limits of Mahadevapura Police Station. PTI JR KH