[1] This is the main National Highway to connect Pondicherry with Krishnagiri.

It starts from Tindivanam in Villupuram district then runs westward till Uthangarai via Thiruvannamalai and then joins NH 48 at Krishnagiri.

NH-77 runs entirely in the state of Tamil Nadu.

[2] NH48 near Krishnagiri, Uthangarai, Tiruvannamalai, Gingee, NH32 near Tindivanam[3][2]

This article about a National Highway in India is a stub.