Special public prosecutor Ujjwal Nikkam said, "Two Federal Bureau of Investigation (FBI) officers are also likely to appear in person to tender evidence."
Nikam also said, "The services of Mahanagar Telephone Nigam Ltd (MTNL) have been requisitioned to provide infrastructure to enable the court to hold videoconferencing for deposition of the US nationals in the Mumbai attack case."
"The witnesses would throw light on how the ten terrorists including the lone surviving gunman Ajmal Kasab were in touch with their handlers in Pakistan through mobile phones," Nikam added.
Nikam also added that for the first time that witnessed from abroad are deposing in terror attack case.
Media sources said that FBI had also conducted a probe and collected clinching evidence in the 26/11 terror attacks in which 166 persons including 6 American were killed.