The Mumbai traffic police on Tuesday received an anonymous message, threatening the actor would be killed if he did not pay Rs 2 crore, the official said.
The police registered a case against the unidentified person and an investigation was on into the matter, he added.
Earlier this month, the Mumbai traffic police’s WhatsApp helpline desk received a threat message demanding Rs 5 crore from the actor.
The police have arrested a man from Jamshedpur in this connection.
Notably, Khan had earlier received death threats from the Lawrence Bishnoi gang. Suspected members of the gang had opened fire outside the actor’s Bandra home in April this year.
A few months back, the Navi Mumbai police uncovered a plot by the Bishnoi gang to kill Khan, leading to security enhancement for the actor.