Discuss how digital public infrastructure models (like NETC-FASTag) improve interoperability and consumer choice in India's toll administration.

Digital Public Infrastructure (DPI) — open, interoperable rails built on public standards — has reshaped toll administration through NPCI's National Electronic Toll Collection (NETC), under which a single RFID FASTag works at any toll plaza nationally [1]. It has widened both interoperability and user choice, though gains at the plaza gate remain uneven.

Interoperability: one tag, any plaza, any issuer

• NETC acts as a common central switch — a tag issued by any bank is read by any acquirer's plaza; MoRTH mandated FASTag lanes from 15 February 2021, with over 1,050 plazas live [1].
• 'OneTag' (an IHMCL–NPCI initiative, launched 2026) extends interoperability to issuer portability: the bank changes while the Tag ID, vehicle number and physical tag remain unchanged, requiring no change at the plaza end [2].
• Standardisation curbs duplication — 'One Vehicle, One FASTag' consolidated tags per vehicle and tightened KYC discipline [5].

Consumer choice and citizen-centric delivery

• Portability ends vendor lock-in: a user poorly served on recharge or wrong-deduction complaints can exit rather than buy a fresh tag [2].
• The Rajmargyatra app offers single-window delivery — geo-tagged complaint redressal, Local Pass and MargMitra help centre [3].
• Choice of product, not merely provider: the FASTag Annual Pass (₹3,000, valid one year or 200 crossings, non-commercial vehicles) activates within two hours through the app [4].

Limits of the model

• User fee is fixed under the National Highways Fee Rules, 2008, so issuers compete on service, not price [7].
• Ground-level collection is the weak link — CAG flagged excess fee at the Hebbalu and Chalageri plazas, Karnataka [7], and NHAI debarred 14 fee-collection agencies for irregularities [6].

DPI has thus converted tolling from a closed, plaza-bound transaction into a contestable, user-facing service. Carrying verified KYC across issuers and publishing plaza-wise complaint data would extend this digital trust from the app to the lane, making interoperability a genuine instrument of accountable, citizen-centric governance.