Apart from around 100 MPs of the Congress, leaders of several opposition parties including TMC, NCP, Shiv Sena, CPI-M, CPI, RJD and Samajwadi Party attended the meeting.
The home ministry's admission that no arrests were made comes against the fact that several videos showing the violence and the masked attackers had gone viral since the attack.
The Indian government will have to first come clean to the court on whether it engaged the NSO Group and spent public money on buying a Pegasus licence.
As the Centre refuses to relent on either an independent judicial probe or a discussion, Congress leader Rahul Gandhi has called a meeting with Opposition MPs and floor leaders tomorrow to finalise a strategy.
'I think there should be an inquiry into this, so that whatever is the truth comes to the fore,' the Bihar CM said. He also said discussions should take place on it.