The girl was allegedly raped inside the school toilet in Vasco town on January 14 this year.
Police had formed a special investigation team to arrest the accused, yet to be identified.
Parrikar told the state Legislative Assembly today that the court, in its judgement, responding to the petition filed by the victim's father seeking justice, has expressed satisfaction over the investigation.
He, however, said police are yet to strike luck in nabbing the accused.
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The police went house to house with the sketch prepared on the basis of information given by the victim. But no one could identify him, he said.
The Opposition legislators, including Aleixo Reginaldo Lourenco and Vijay Sardesai, questioned the state government's seriousness in probing the crime, which had raised serious concern in the state.
Lourenco said the family has been undergoing trauma to such an extent that even the victim's elder sister has stopped going to school.
"Counselling has been extended to the victim and even a special officer has been appointed to coordinate with the family," he said.