"A memorial service will be held in Jiah's memory at the Chelsea Town Hall attended by Jiah's friends and family, including her mother Rabiya Amin, who has campaigned tirelessly over the past 12 months to unearth the truth behind Jiah's death," read a mailer.
The service for the actress, who grew up in Chelsea, will be held on Tuesday evening.
The New York-born Jiah - who acted in the blockbuster Ghajini - was 25 when she was found hanging in her Juhu flat on June 3, 2013. Her sudden death continues to remain a mystery, and her mother has vowed to keep the "battle going on".
"I shall keep the battle going all the way until I get to the root of the truth. Although it's been a year, to me, it seems like yesterday," said Rabiya.
Jiah's alleged suicide was initially attributed to a lack of assignments, but it was alleged that she was going through a troubled phase in her relationship with actor Aditya Pancholi's son Suraj.
Her mother accused Suraj of abetting Jiah's alleged suicide after the family recovered a letter written by the Nishabd actress. Suraj was also taken into custody, and was interrogated in the case, but was eventually released on bail.
But Rabiya has still not given up hope of getting justice for her daughter.
"They are delaying to sabotage and compromise the crucial evidence. Jiah's mother's long fight for justice will not stop until truth is revealed," Rabiya said.
In her latest attempt, she has sought the help of the British police to investigate her daughter's death. She has written to Foreign Secretary William Hague to help bring about justice for her daughter, reports dailymail.co.uk.
She has urged British police to launch a probe into the case, which is currently at the centre of a Bombay High Court hearing.
Rabiya had earlier also approached US Ambassador to India Nancy Powell to ask for the Federal Bureau of Investigation's assistance in the investigation.
Jiah was born Nafisa Rizvi Khan in New York and moved with her mother to London when she was two-years-old.
When she was 17, she was offered a place in a drama course at the Lee Strasberg Film Institute in New York.
While on holiday as an 18-year-old, she was approached by Indian filmmaker Ram Gopal Varma, who cast her as a teenager in love with her best friend's father in his 2007 film Nishabd.