1. The original petitioner in OP 310 of 1980 (the 1st respondent in OP 3350 of ]980) owned a rubber estate. On his death, his legal representatives have been impleaded as supplemental parties in both the original petitions. The petitioner in OP 3350 of 1980, who is also the 1st respondent in OP 310 of 1980, was a workman employed in the estate. He was retrenched with effect from 20-4-1964 and this led to an industrial dispute which was referred to the Industrial Tribunal, Calicut. In I.D. 118 of 1964, an award was passed on 21-12-1974 directing reinstatement of the workman with backwages. The award was published in the Government Gazette dated 11-2-1975. On 4-5-1975, the workman filed Ext. P1 claim petition before the 2nd respondent, Labour Court, Ernakulam under S.33C(2) of the Industrial Disputes Act, 1947 (for short 'the Act') for backwages upto the date of the award and future wages upto 30-4-1975. The employer filed Ext. P2 objections. A similar claim Ext. P3 was filed for the period from 1-5-1975 to 1-12-1975. Ext. P4 is a copy of the objections. The 3rd claim under Ext. P5 was filed for the period ending 30-1-1979. Ext. P6 is a copy of the objections filed by the employer.