they did not virtually dispute the fact that the deceased Joyson was engaged as a casual worker in KSE Ltd, Koratty. Casual employment, as the very expression suggests, ensures only casual engagement and therefore monthly income cannot be taken in respect of such an employee merely based on a certificate, that too, when it was not legally brought on record. Even then, we are of the considered view that the Tribunal went wrong in taking the notional income of the deceased Joyson as Rs.2,250/-, and at any rate the notional income should have been taken as Rs.3,000/-. In the light of the discussions, as above, we are of the view that the compensation payable to the appellants has to be looked into based on the structured formula under the second schedule to the MV Act, taking into account the evidence on record that the deceased was between the age group of 20-25 years and then taking the monthly income of the deceased Joyson as Rs.3,000/-. Going by the structured