7 As per the judgment of the Supreme Court in Manager, Reserve Bank of India v S. Mani and Others [(2005) 5 SCC 100] , the initial burden is on the appellant to prove that he had completed 240 days of service in a calendar year and he cannot shift the burden on the employer. In this case, though it has been contended by the learned counsel for the appellant that the first respondent should have produced the records, be it noted, no application was filed by the appellant, before the Labour Court, calling for the records, and only at the writ petition stage, was the plea with regard to non-production of documents taken and this has even fairly been admitted by the learned counsel for the appellant before us, which has, in fact, been recorded by this Court in the order dated 16.10.2023. Further, concededly, the industrial dispute was raised well within three years of termination. When the matter is subjudice, it is the duty of the first respondent to retain the records till the dispute attains finality.