The Comptroller and Auditor General of India (CAG) will unveil CAG LLM 2.0, an in-house large language model developed by the Indian Institute of Technology Madras (IIT Madras), at Audit Diwas on 16 November 2026. The model has been trained on about 65,000 internal inspection reports and will assist auditors with routine analysis, without carrying out audits itself.

Deputy Comptroller and Auditor General Krishnan Sangaran Subramanian shared the details on 12 November 2026. The launch adds to a wider push for indigenous AI models in defence and other critical sectors, where government bodies want control over both the model and the data.

What CAG LLM 2.0 will do for auditors

According to the official, the model brings years of inspection reports, auditing standards and guidelines onto a single platform. Auditors will be able to type simple queries and get answers drawn from that material. The tool is meant to sit alongside the conventional audit management system that CAG already uses.

Subramanian said that once current and previous financial statements, the auditor’s report and related bills are loaded, the model will handle the numerical calculations, run the analysis and surface patterns.

• Three dedicated streams: compliance audit, financial audit and works audit
• Trained on around 65,000 internal inspection reports plus CAG auditing standards and guidelines
• Positioned as an assistant for preliminary groundwork, not as a replacement for auditors

How CAG is handling data security

Individual auditors will only be able to ask questions based on the reports the model was trained on, and will not be able to upload their own material to the platform or to the cloud. Officials have said CAG is relying only on in-house models so that sensitive audit data stays within the institution.

This ring-fenced approach mirrors how Indian enterprises are weighing where AI workloads run. OpenAI, for instance, has just begun offering in-country inference for businesses in India to meet similar data-location needs.

A roadmap for AI across the audit department

According to a curtain-raiser note from CAG, the department’s Artificial Intelligence Champions will present a roadmap at Audit Diwas for enterprise-wide AI deployment in three areas: financial audit, Income Tax audit and finalisation of pension cases of state government employees.

Data analysis is also changing how audits are planned. For 2026-27, CAG is using patterns across departments, rather than single audited units, to decide where to look. In the states, data on direct benefit transfers under social sector schemes, public works and digitally paid salaries of public officials is being screened for red flags that audit teams then follow up.

CAG’s first integrated audits of seven social sector schemes are nearing completion, and a review of ease of living in 101 cities is also under way. Other public bodies are taking similar steps, such as the National Health Authority, which picked EkaCare to build an AI voice scribe for public doctors.

Why it matters for AI in public services

The Comptroller and Auditor General of India audits the accounts of the Union and state governments, so an AI assistant inside the institution could shorten the time between spending and scrutiny. By keeping the model in-house and limiting what users can feed into it, CAG is also testing a governance model that other regulators may follow. Research from IIT Madras has also flagged that AI’s costs fall unevenly on India’s workforce, a reminder that how such tools are rolled out to staff matters as much as the technology.

Key takeaways

• CAG will unveil LLM 2.0, built by IIT Madras, at Audit Diwas on 16 November 2026.
• The model is trained on about 65,000 inspection reports and has streams for compliance, financial and works audits.
• It will assist with calculations and pattern-finding, while auditors remain responsible for the audit.

FAQ

What is CAG LLM 2.0?

It is an in-house large language model developed for CAG by IIT Madras, trained on internal inspection reports, auditing standards and guidelines to help auditors with routine analysis.

Will the AI model conduct audits?

No. CAG officials said the model is an assistant for preliminary groundwork, and audits will still be carried out by auditors.

When will it be launched?

CAG plans to unveil it at Audit Diwas on 16 November 2026.

Featured image: K. Sanjay Murthy taking oath as Comptroller and Auditor General of India at Rashtrapati Bhavan, 21 November 2024. Photo: Press Information Bureau via Wikimedia Commons (GODL-India)

Be a part of Elets Collaborative Initiatives. Join Us for Upcoming Events and explore business opportunities. Like us on Facebook , connect with us on LinkedIn and follow us on Twitter.

"Exciting news! Elets technomedia is now on WhatsApp Channels Subscribe today by clicking the link and stay updated with the latest insights!" Click here!