As per case facts, 16 contract workers were employed by Bharat Coking Coal Limited (BCCL) since 1983 for maintaining the water supply system at Bhojudih Coal Washery, a job found ... to be perennial. Despite working through various contractors, they sought regularization. BCCL argued the work was seasonal and denied a direct employer-employee relationship. The Tribunal ordered their regularization and benefits. The question arose whether the Industrial Tribunal had the jurisdiction to pass such an award, considering BCCL's claims of seasonal work and no direct employment. Finally, the High Court, referencing Supreme Court precedents on length of service and perennial nature of work, found the Tribunal had jurisdiction and upheld its award, stating it was lawful and required no interference, given the workers' 40 years of continuous service under the same principal employer.