One of the victims who was suffering from Tuberculosis died after she was gang raped. Hence, prime accused and Director of orphanage Ramchandra Karanjule faced additional murder charge and was convicted on this count.
Four other accused, however, were acquitted due to lack of evidence against them.
The court would pronounce the quantum of sentence to be awarded to the six convicts tomorrow.
The offence was committed at the Orphanage, located in Kalamboli area in Navi Mumbai and run by a private organisation, Kalyani Mahila Bal Seva Sanstha.
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Of the three girls who testified in the court, one was mentally-challenged, while two were deaf and dumb who identified the main accused by signs.
54-year-old Ramchandra Karanjule, founder-Director of the orphanage, was convicted on charges of rape, murder and gang-rape.
Special Public Prosecutor Rohini Salian pressed death sentence for Karanjule, also a former railway employee, saying he had committed a heinous crime and it was the rarest of the rare case.