Gawli was convicted for the murder of Shiv Sena MLA Kamalakar Jamsandekar in 2008
Salem is currently serving a life sentence after being convicted for his involvement in the 1993 Bombay Blast.
More details on the same are awaited.
Nehra, 28, also carried a cash reward on his head and had been absconding for the past few years, before he was arrested yesterday evening
He was arrested amid a tight trap laid by the ATS officials, after receiving a tip-off about his whereabouts from informer.
Tariq was wanted in connection with the Sara Sahara illegal shopping complex case of South Mumbai. He was also involved in a 1998 double murder case.
Takla complained of chest pain on mid-night, while the jail doctors did check-up.However, his pain increased and later he was shifted to Pune Sasoon hospital where doctors declared him dead.
On January 16, Salem claimed that the prosecution did not have enough evidence against him in the case