Section 5
Enhanced punishment subsequent conviction
Chapter 2: Offences of atrocities
Whoever, having already been convicted of an offence under this Chapter is convicted for the second offence or any offence subsequent to the second offence, shall be punishable with imprisonment for a term which shall not be less than one year but which may extend to the punishment provided for that offence.
The Scheduled Castes and the Scheduled Tribes (Prevention of Atrocities) Act, 1989 (Act No. 33 of 1989). From the updated text on India Code, with later amendments. Being checked against the official copy; amendment notes are not shown yet.