Part of NH16 and the Chennai-Kolkata Golden Quadrilateral, the Tada-Nellore part of the STPL toll road project runs across 110.8 km of Andhra Pradesh. It features toll plazas at Nellore, Budhanam and Sullurpeta, with Krishnapatnam port and Sri City being the key sources of traffic.

The STPL – Nandigama-Ibrahimpatnam section supports major industries along the corridor, including sand, cement, chemicals, and iron and steel. Covering 48 km of NH65, this toll road connects urban centres in eastern Andhra Pradesh to Hyderabad, Pune and Mumbai in the west.