Tamil Nadu State Highway 25 (SH-25) is a State Highway maintained by the Highways Department of the Government of Tamil Nadu. It connects Trichy with Namakkal Town in the northwestern part of Tamil Nadu. It is one of the busiest State Highway in Tamil Nadu, which connects Bangalore, Mumbai, and Hyderabad from Trichy.
The total length of the SH-25 is . The route is from Tiruchirappalli - Namakkal, via Srirangam, Gunaseelam, Musiri, Thottiyam, Meikalnackanpatty, Vazhavanthi, Valaiyappatti, and Pudhupatti.