Lashkar-e-Tayiba operations commander Zakiur Rehman Lakhvi, the suspected Mumbai attacks mastermind, and communications expert Zarar Shah are in Pakistan's custody, said sources.The Federal Investigation Agency had lodged an FIR against them in connection with the 26 11 terror strikes. Both Lakhvi, Shah and Hamad Ameen Sadiq, a key terrorist linked to the Mumbai terror attack, are linked to the LeT and have been named in the FIR lodged by the FIA.