I Have the same Interview date of March 14th at New Delhi.
I didn\'t receive the Packet-4 with the appointment letter yet. So, I send my known person to pickup a copy of the same. They gave him a copy of the whole packet-4 and wrote the interview details on the top of the Instructions for Packet-4.
Let me know if the info. helps or if you have some other info.
regards,
LookGC