Three persons were arrested on Friday for allegedly trying to extort Rs 1 crore from a nursing home operator, police said.
The accused were identified as Babu Hasan, Arman Ansari and Fardeen Khan and were arrested from different localities, they said.
On September 29, one Muslim Ali, who runs a nursing home in Navada area, received an extortion letter demanding that he pay Rs 1 crore or face dire consequences, they said.
Ali lodged an FIR against unknown persons on October 1, they added.
During interrogation, the trio revealed that a fourth person, Ashraf Ali, was involved in the extortion bid, the police said, adding that efforts are underway to nab him.