Four laning of Trichy Karaikkudi section of NH-210 (km 10.000 to km 94.000) and Trichy Bypass (ch 109.558 to ch 135.390) in the State of Tamil Nadu under NHDP Phase III on BOT basis.

A Concessio ID is a 12-character canonical identifier for an infrastructure concession. The format is CC-AA-S-NNNNNN-K — country, asset class, structure, sequence, and a Luhn check digit. The check digit protects against typos and fabricated IDs.

Concessio IDs are stable for the life of the concession. They do not change if the asset is renamed, sold, or restructured. Cite them in filings, press releases, research reports, and contracts.