Re-read the story on Rathnam as well as the provisions of the 1989 Scheduled Castes and Scheduled Tribes (Prevention of Atrocities) Act. Now list one reason why you think he used this law to file a complaint.
He used this law to file a complain to sought the support of law. He used this as it was framed in response to demands made by Dalits and others so that the government may take seriously.