being not in dispute, it is surprising that he was not examined in support of the claim. Moreover, the second claimant, who is the son of the deceased, is also not examined and except the statement of first claimant, who had no personal knowledge on any aspect, the initial burden remained undischarged by the claimants. It is, no doubt true, that there is no rebuttal evidence against Ex.A4 produced by the claimants but on the basis of a solitary mention in the charge sheet while describing the deceased with his occupation, it is difficult to accept the contentions of the learned counsel for the appellants that Ex.A4 by itself establishes the employer and employee relationship, particularly, when crucial witnesses such as the driver of the lorry,