The email threatened to blow up Bachchan's residence Jalsa, Bombay HC and the Mahalaxmi Racecourse. A bomb hoax threat email targeting Bollywood actor Amitabh Bachchan's bungalow, the Bombay High Court and Mumbai's Mahalaxmi Racecourse prompted security agencies to launch an investigation on Friday. Police searched the Bombay High Court, the BSE, Mahalaxmi Racecourse and actor Amitabh Bachchan’s Jalsa bungalow after a threatening email, but found no suspicious objects.