The Central Bureau of Investigation on Friday submitted in a special CBI court in Mumbai a supplementary chargesheet in the 2012 Sheena Bora murder case.Sheena Bora, 24, the daughter of Indrani Mukerjea from a previous relationship, was allegedly strangulated in a vehicle on April 24, 2012, and later her burnt body was dumped in a bag in the forests near Gagode, in Raigad district adjacent to Mumbai.The Mumbai Police arrested Indrani, her former driver Shyamvar P. Rai and ex-husband Sanjeev Khanna in August 2015, and later the CBI nabbed media baron Peter Mukerjea, Indrani's husband, in November.On June 20 this year, the Special Court granted Rai's plea for a pardon in return for turning approver and a prosecution witness in the case.In its chargesheet filed in November 2015, the CBI had named Indrani, Khanna and Rai as accused in the case.