Analyzing the above decisions of this court, it is clear that the provisions of the Evidence Act in terms do not apply to the proceedings under section 10 of the Industrial Disputes Act. However, applying general principles and on reading the aforestated judgments, we find that this court has repeatedly taken the view that the burden of proof is on the claimant to show that he had worked for 240 days in a given year. This burden is discharged only upon the workman stepping in the witness box. This burden is discharged upon the workman adducing cogent evidence, both oral and documentary. In cases of termination of services of daily waged earner, there will be no letter of appointment or termination. There will also be no receipt or proof of payment. Thus in most cases, the workman (claimant) can only call upon the employer to produce before the court the nominal muster roll for the given period, the letter of appointment or termination, if any, the wage register, the attendance register etc. Drawing of adverse inference ultimately would depend thereafter on facts of each case. The above decisions however make it clear that mere affidavits or self-serving statements made by the claimant/workman will not suffice in the matter of discharge of the burden placed by law on the workman to prove that he had worked for 240 days in a given year. The above judgments further lay down that mere non-production of muster rolls per se without any plea of suppression by the claimant workman will not be the ground for the tribunal to draw an adverse inference against the management. Lastly, the above judgments lay down the basic principle, namely, that the High Court under Article 226 of the Constitution will not interfere with the concurrent findings of fact recorded by the labour court unless they are perverse. This exercise will depend upon facts of each case. Now applying the above decision to the facts of the present case, we find that the workman herein had stepped in the witness box. He had called upon the management to produce the nominal muster rolls for the period commencing from 22.11.1988 to 20.6.1994. This period is the period borne out by the certificate (Ex.W1) issued by the former Asstt. Executive Engineer. The evidence in rebuttal from the side of the management needs to be noticed. The management produced five nominal muster rolls (NMRs), out of which 3 NMRs, Ex.M1, Ex.M2 and Ex.M3, did not even relate to the concerned period. The
