Most of the witnesses have identified the three prime suspects in the Zaveri Bazaar blast case in a police parade in Mumbai.
Sayed Abdul Hanif, his wife Fahmida and associate Arshat Shafi Ahmed Ansari were paraded before the witnesses last week, crime branch sources said.
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Earlier, the three were arrested in connection with the blasts in Ghatkopar (July 28) and the Gateway of India (August 25).
Fifty-three people were killed and over 100 injured in the August 25 blasts at the Gateway of India and in Zaveri Bazaar; two were killed in Ghatkopar.
The three will be produced before a court on Tuesday for further remand in the Ghatkopar and Gateway of India cases. The police will also seek the court's permission to arrest them in the Zaveri Bazaar case, as they have been identified in the parade.
Hanif's daughter, Farheen, who was also arrested, has been sent to juvenile remand home, as she is a minor.