Here is the link for the video:
Jan 1, 2007 Video
When Arjun gives Bhavri the locket he says his NANI gave it to him. Now when the Parekhs are trying to find out who the locket belongs to, the jeweler says it was made for the Goenkas.
DADI would be having the same last name "GOENKA", but NANI should be from a different family. So the locket should have been made for that family and not the Goenkas.
Ab to shayad Saarrthi bhi dimag bandh kar ke, Hazmule ki bottle le kar dekhna hoga.