Direct answer. RTI applications to the Department of Telecom (DoT) and the Telecom Regulatory Authority of India (TRAI) in 2007–2008 produced spectrum allocation correspondence, policy notes, and TRAI recommendations that became central evidence in the Supreme Court litigation led by Subramanian Swamy — ultimately resulting in the cancellation of 122 spectrum licences in the landmark 2012 judgment.
The 2G spectrum scam is one of the largest financial frauds alleged in Indian governance history. In 2008, spectrum for 2G mobile services was allocated by the DoT at 2001 prices despite massive increases in telecom subscriber numbers — and the allocation process deviated from the Supreme Court's own spectrum-sharing principles. The Comptroller and Auditor General estimated the loss to the exchequer at approximately ₹1.76 lakh crore (a figure that was later contested but not nullified). The paper trail that fed the Supreme Court litigation came, in part, from RTI.
Subramanian Swamy, then a Rajya Sabha member and president of the Janata Party, filed RTI applications to the DoT and the Finance Ministry in 2007–2008 seeking the allocation correspondence and policy notes related to the spectrum assignment. His RTI-sourced documents formed a significant part of the evidence he placed before the Supreme Court in his writ petition.
Several other RTI applications were filed in parallel by journalists and activists, including filings to TRAI seeking the regulator's recommendations and the ministry's deviation from those recommendations.
Published accounts of the RTI questions include:
The DoT provided some records while withholding others, citing §8(1)(a) (security / sovereignty) and §8(1)(d) (commercial confidence of third parties — the telecom companies). The withholding of key file notings was contested in CIC proceedings.
TRAI provided its own recommendation documents, which showed that TRAI had recommended a different, market-linked pricing mechanism — a recommendation the DoT had not followed.
The CIC directed partial disclosure in at least one hearing, though some records remained contested through the first appeal and second appeal stages.
The PMO correspondence that Swamy sought — letters from then Prime Minister Manmohan Singh to the telecom minister about spectrum pricing — became one of the most publicised documents from the period. Its partial disclosure, and the PMO's claims about what it said, were analysed extensively in news coverage.
Journalism: The Times of India, The Hindu, and NDTV published detailed analysis of the RTI-sourced documents from 2008 onwards. The CAG's special report on 2G spectrum was tabled in Parliament in 2010 and used a methodology that drew on many of the same documents RTI applicants had been seeking.
Litigation: Subramanian Swamy filed a writ petition in the Supreme Court placing on record the RTI-sourced documents alongside other evidence. The petition argued that the allocation violated the Court's own natural resources allocation principles.
Supreme Court judgment (February 2012): A two-judge bench of the Supreme Court in Centre for Public Interest Litigation v. Union of India (2012) cancelled 122 spectrum licences that had been allocated irregularly in 2008. The Court held that the spectrum, as a natural resource, could not be allocated by the government at arbitrary prices and that the “first-come-first-served” policy was unconstitutional. Former Telecom Minister A Raja and others were subsequently arrested and tried.
What this case proves you can do:
Yes. DoT is a central public authority. Spectrum allocation decisions from 2008 are historical records and most §8 exemptions for investigation/prosecution would no longer apply (the main case concluded with acquittals in 2017 by the trial court). File via rtionline.gov.in.
The trial court acquittals related to the criminal charges of corruption. The Supreme Court's 2012 civil ruling cancelling the licences stands — it was not reversed. The RTI-sourced documents that showed the policy deviation remain part of the public record regardless of the criminal outcome.
The CAG (Comptroller and Auditor General) is a constitutional body and a public authority under the RTI Act. You can seek copies of audit reports, audit notes, and draft paragraphs. The CAG does not provide information about ongoing audit work (§8(1)(h) applies) but completed and tabled reports are fully disclosable.