In a case of online fraud, an unidentified caller allegedly siphoned off nearly Rs 9 lakh from a bank account of a man residing near Nagpur, after asking the latter's minor son to download an application on his father's phone, police said.

The incident happened on Wednesday evening, police said. "The victim, Ashok Manwate, a resident of Koradi, has lodged a complaint in this connection," a police official said.