Mumbai authorities boost security after an emailed threat targets the mayor’s office, Bachchan residence, and a Diljit Dosanjh concert. Email warns of attacks on Mumbai mayor’s office, Bachchan home, Diljit Dosanjh's concert left The email, which made references to ‘Khalistan’, also claimed that there would be an attack during the November 27 concert of singer Diljit Dosanjh in the Mahalaxmi Racecourse area The Hindu The Hindu https://th-i.thgim.com/public/incoming/xy77ul/article71616107.ece/alternates/FREE_1200/Screenshot%202026-10-19%20135303.