If your company got closed then how will you be able to get rectification done on your letter ? . If there is any chance of the same then you can tell your employer that this was due to the typo error and you will get it ratify from your previous employer and submit the new copy. I think that will solve the problem.
24th September 2018
Because he has done some date mismatch in reliving letter and experience letter
24th September 2018 From India, Bengaluru