Two officers, part of an SIT formed by the Haryana Police, also went through the school records, said a senior official of Mumbai Police.
However, no member of the Pinto family which controls the group, was questioned, he said.
Meanwhile, the Bombay High Court today extended the interim protection from arrest granted to the trustees of Ryan International Group, till tomorrow.
Father of the 7-year-old victim opposed their anticipatory bail pleas.
Ryan group's CEO Ryan Pinto and his parents-- Augustine Pinto, founding chairman of the group, and Grace Pinto, its managing director--have filed pre-arrest bail applications in the Bombay High Court.
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