Police Inspector who initially investigates the 1995 dacoity case with Theeran. His home is raided by the gang, resulting in his wife's death and Priya's coma. He later survives and visits Theeran in 2017.
Both officers work jointly on the initial Ponneri dacoity investigation.
Sathya becomes a primary victim of the gang's retaliatory violence.
Sathya's departmental duties are subject to the Minister's administrative control.
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