New Delhi, May 15: Medical entrance exam NEET-UG, which was cancelled following allegations of irregularities in the examination process, will be re-conducted on June 21, the National Testing Agency (NTA) announced on Friday. The exam was earlier conducted on May 3. The NTA had on Tuesday announced the cancellation of NEET-UG and said the Central Bureau of Investigation (CBI) would carry out a comprehensive inquiry into the alleged irregularities linked to the exam.