Even his wife, Sunita, used to get threat calls, the crime branch said, but Santosh did not take the calls seriously.
On January 16, the crime branch's anti-extortion cell arrested Zamir Zaheer and Tanveer Ahmed near Bandra station and recovered firearms. They were going to kill Sunita at her Juhu residence.
Police said Shakeel was unaware that Sunita had divorced Santosh after he was arrested.
"We proved that the case was the handiwork of organised crime syndicate," said special public prosecutor Dileep Shah, and told the court that accused were acting on Shakeel's orders.