India, Aug. 7 -- A trail that began inside a residential society in Pune has emerged as one of the key pieces of evidence in the CBI's investigation into the NEET-UG 2026 paper leak. Investigators used visitor-entry records, biometric data, phone locations, notebooks and forensic comparisons to piece together how questions allegedly moved from NTA-appointed experts to students before the May 3 medical entrance exam.

The CBI filed its first chargesheet against 13 accused persons on July 28, describing an alleged network involving three NTA subject experts, students, coaching operators and middlemen. The agency says the evidence shows that questions were accessed during the paper-setting process and later reconstructed and circulated to se...