The case had been transferred to the CBI as per an apex court order that all cases against Singh be transferred to the central agency. Earlier, the state’s crime branch which was the investigating agency, had filed the chargesheet against some of Singh’s co-accused.
Indrani Mukerjea, accused of killing her daughter Sheena Bora, has said the CBI was reluctant to probe her "Sheena is alive" claim to cover up their own "shoddy investigation" in the case.