India, May 16 -- A chemistry professor who was part of the National Testing Agency's examination process has been arrested as the alleged mastermind behind the NEET-UG 2026 question paper leak, the Central Bureau of Investigation (CBI) said Friday, pointing to a breach that originated inside the agency responsible for conducting India's most critical medical entrance test.

PV Kulkarni, from Latur in Maharashtra's Marathwada region, was arrested from Pune, where investigators said he ran special coaching classes in the final days of April at which he allegedly dictated the leaked questions - complete with answer options and correct responses - to students who paid several lakhs of rupees each to attend.

"Kulkarni misused his access to th...