National Thermal Power Corporation Ltd vs Karri Pothuraju & Ors

The appeal concerns the legal status of canteen workers employed through contractors by a Public Sector Undertaking (National Thermal Power Corporation Ltd). The core issue involves determining whether the workers were employees of the contractor or the principal employer for the purpose of regularization and benefits. The court examines the nature of the contract and the actual control exercised over the workers to decide their entitlement to claims under labor laws.