Pakistan had requested for a visit of the second Commission as a trial court there had rejected the findings of the earlier judicial commission that visited Mumbai in March.
Pakistani court had said that the report of the panel had no "evidential value" as it was not allowed to cross-examine the four witnesses and asked the panel to visit India again.
The four witnesses to be cross examined by the panel include the magistrate who recorded the confessional statement of Lashkar-e-Taiba (LeT) terrorist Ajmal Kasab, since hanged, the investigating officer of the 26/11 case and two doctors who conducted the postmortem of the nine terrorists killed during encounters with police and NSG in 2008.
Pakistan has been holding a trial against five accused including 26/11 master-mind Zaki-ur Rehman Lakhvi, Abu Alqama alias Mazhar Iqbal, Hammad Amin, Abdul Wajid alias Zarar Shah and Shahid Jameel Riaz.
Pakistan's interior minister Rehman Malik, during his meeting with union home minister Sushilkumar Shinde, had requested for allowing the second Commission so that the legal formalities could be completed.
Shinde had conveyed to him that 26/11 was a test case and that Islamabad should ensure an early and a speedy trial for all the accused involved in the conspiracy.
A Pakistani Commission had come in march this year during which they only recorded the statements of the witnesses and could not question them.