Mumbai police had arrested Gurmail Baljit Singh (23), a resident of Haryana and Dharmaraj Rajesh Kashyap (19), from Uttar Pradesh, whereas there one aide, who was at the spot during the firing, fled from the spot.
The accused has been identified as Bhagwat Singh Om Singh (32), originally from Udaipur in Rajasthan who is currently staying in Navi Mumbai.
Shooters involved in the killing of Nationalist Congress Party leader and former Maharashtra minister Baba Siddique learnt to handle firearms by watching videos on YouTube at a rented house in Kurla area in Mumbai, officials said on Wednesday.
Twenty-three-year-old Singh's family said they disowned him 11 years ago and have called for exemplary punishment for his actions.
Baba Siddique murder: Pune scrap shop owner held
The conspiracy to kill Nationalist Congress Party leader and former Maharashtra minister Baba Siddique was hatched in Pune and shooters were provided with a photo and a flex banner for the target identification, police said on Monday.
The Mumbai police probing the Baba Siddique murder case have found that the five newly-arrested accused had demanded Rs 50 lakh for the killing, but backed out later due to disagreement over payment and also considering the Nationalist Congress Party leader's clout, officials said.
A Mumbai court on Monday remanded the third person arrested for the killing of Nationalist Congress Party leader and former Maharashtra minister Baba Siddique to police custody till October 21.
Police scoured places of worship in Madhya Pradesh's Ujjain and Khandwa in their hunt for the third shooter wanted for Nationalist Congress Party leader Baba Siddique's killing.
Police have launched a probe into the killing of former Maharashtra minister Baba Siddique from different angles, including a possible contract killing, business rivalry or threat over a slum rehabilitation project, officials said on Sunday.
The Congress on Sunday demanded a thorough probe into Siddique's murder and said Maharashtra Chief Minister Eknath Shinde and his deputy Devendra Fadnavis, who holds home portfolio, should take moral responsibility for law and order "failure" and resign.