The arrested were identified as Karan Singh Narsingh Rajit, Manoj Muddanna, Amar Bahadur Bam and Sumit Vazhakkulath Ponnappan, a senior official of the Dubai police said.
Lamboo Shakil, the 42-year-old associate of Dawood, had come to the metropolis to carry out the gang's activities.
A CBI officer is leaving for Lisbon to file India's request with the Portuguese authorities.
The prosecution alleged that actor was threatened by producer Nasim Rizvi alias Raja Saheb and his assistant Abdul Rahim Allahbaksh to act in their film and was also persuaded by them to speak to Pakistan-based gangster Chhota Shakeel.\n\n\n\n\n\n\n\n
Can you recognise this actor?
Police have charged Kaskar and two others under the Indian Penal Code and the Maharashtra Control for Organised Crime Act for evicting a woman from her house, which obstructed the Sara Shopping Centre in South Mumbai.
The 'encounter specialist' had questioned the jurisdiction of a special court to order a probe into allegations that he is hand in glove with the underworld on the basis of a complaint filed by a Mumbai journalist.
India still awaits his extradition to face trial in the 1993 Mumbai serial blasts and other cases.
He was produced amidst tight security before Magistrate S S Shirke.
'Everybody knows who trapped me. I don't even want to name him. If I see them my blood starts boiling,' Bharat Shah in an exclusive interview to Chief Correspondent Syed Firdaus Ashraf.
Unhappy with the coverage related to hanging of 1993 Mumbai blasts convict Yaqub Memon by three leading news broadcasters, Information and Broadcasting Ministry has issued show-cause notice to them, asking why action should not be taken against them.