Mumbai, Oct. 23 -- Fresh bomb threats targeting Bollywood megastar Amitabh Bachchan and singer-actor Diljit Dosanjh have raised security concerns in Mumbai, with the threatening messages reportedly naming Bachchan's residence in Juhu, the venue of Dosanjh's upcoming concert at Mahalaxmi and schools in Dadar.

Deputy Commissioner of Police Maneesh Kalwaniya said the Brihanmumbai Municipal Corporation (BMC) had received a threatening email.

Security checks were subsequently carried out, but no suspicious object was found, according to the police officer.

Bachchan's bungalow, Jalsa, in Juhu, was reportedly among the locations mentioned in the threat.

The other location mentioned was the Mahalaxmi concert venue, where Dosanjh is scheduled to...