State Highway (SH-4) connects Arcot
. Total length of SH-4 is 114 km.
SH-4 Route: Arcot - Arani - Chetput - Vallathi - Gingee - Muttathur - Villupuram Road
Villupuram Road refers to the junction of SH-4 with NH-45 near Villupuram (Katpadi Gate). Katpadi Gate refers to crossing of Villupuram-Katpadi rail line on NH-45