Jiah Khan committed suicide on June 3, 2013.
Jiah's family members, who found the note at their house, preferred to retain the original letter doubting police action, but have agreed to give a notarised copy of the same to the investigators, a police officer at the Juhu police station said.
The gist of the note reveals the strained relationship of the actress with Suraj Pancholi, son of actor couple Aditya Pancholi and Zarina Wahab, the officer added. (Read - Aditya Pancholi: Don't make my son villain in Jiah Khan's story
"We would seek legal experts' opinion and an appropriate action would be initiated if required. As of now, we do not want to jump to any conclusion," said the officer.
The Police will also take the help of handwriting experts to find out whether the letter was indeed written by Jiah herself, though the family claims that it is her handwriting.
The note reportedly reads, "You have cheated me. I trusted the relation. You didn't care about the relation. By the time you will be reading this letter, probably by then I won't be there in this world."
Body of Jiah, 25, was found hanging at her 'Sagar Sangeet' residence in Juhu at around 11 PM on June 3, where she lived with her mother and sister, who were not present at the house when Jiah hung herself from a ceiling fan.