New Delhi, April 13 -- The National Testing Agency (NTA) on Sunday said it has reviewed the provisional answer keys of the Paper 1 (B.E./B.Tech.) of Joint Entrance Examination (JEE) Main 2026 Session 2, a day after candidates and teachers flagged errors in the Chemistry section of the question paper for the examination held on April 5. It added that the updated provisional answer keys were uploaded on the JEE Main portal. While the NTA has not specified a date, officials said the final answer key will be released after all challenges are reviewed. The move comes a day after the agency acknowledged concerns raised on social media regarding "discrepancies" in option IDs of 19 Chemistry questions of the April 5 (Shift 2) examination. It was not immediately known if the discrepancies were in the language or design of the questions, but officials confirmed there were errors in the right answer option in the provisional answer key. A senior NTA official said a "technical glitch" led to mismatches between question IDs and correct option IDs in 19 Chemistry questions....