Durga Rani Bora, Indrani's mother passed away on Thursday in Guwahati. Indrani's parents, father Upendra Kumar Bora and mother Durga, live in Guwahati, Assam.
Upendra and Durga also happen to be the legal parents of Indrani's daughter Sheena Bora, who was allegedly murdered by Indrani in 2012.
Indrani Mukerjea's mother passes away in Guwahati.— ANI (@ANI_news) October 1, 2015
The CBI has taken over the probe into the sensational Sheena Bora murder case and registered complaints against three prime accused on September 29.
Taking over the case 10 days after the Maharashtra government handed it over, the Central Bureau of Investigation lodged a case against the victim's mother Indrani Mukerjea, her ex-husband Sanjeev Khanna and her former driver Shyamvar Rai.
They have been charged under sections 120-B, 364, 302, 307, 328, 201, 202 and 203 of the Indian Penal Code and section 3(25) of the Arms Act pertaining to criminal conspiracy, kidnapping, murder, destruction of evidence and causing hurt by administering poison, among others.
The CBI Special Crime Branch took over the investigations following a request made by the Maharashtra government and a subsequent notification issued by the Centre.
The trio has been accused by Mumbai Police of hatching a criminal conspiracy to murder Ms Sheena Bora, abducting and murdering her and disposing of her half-burnt body in a forest in Raigad.
In a surprise move 10 days ago, the Maharashtra government decided to hand over the probe to the CBI after nearly a month of controversies, allegations and counter-allegations on the role of former city police commissioner Rakesh Maria, who was suddenly promoted as Director General of Police.
The state government's decision followed a case status report submitted by DGP Sanjeev Dayal, which averred that the case had many implications beyond the murder - the motive of which is still not clear - including property and financial angles.
Ms Sheena Bora, a 25-year-old executive with a private company, was murdered on April 24, 2012 and her body disposed of in a forest off Gagode village in Raigad district.
While Ms Indrani and her former driver Rai were nabbed from Mumbai, her ex-husband Sanjeev Khanna was arrested from Kolkata.