Sumathi Subramanian was born 1 June 1966 in Theni, India to Murugesa Pandian . She married Subramanian Vanniaperumal 10 November 1991 in Theni, India.
Children
| Name | Birth | Death | Joined with |
| [[Nandhakumar Subramanian (1993- )
Venkadesh subramanian (1995- )]] || || || | |||
Siblings