Constitution of India , Art.226, Art.311— Termination of service - Writ petition against - Maintainability - Petitioners working on contractual basis with respondent company - Their services terminated for alleged misconduct - Respondent company had entered into contracts with different banks to collect currency from them and top up ATM branches being run by them, which activity cannot be described as a public function - Termination can be challenged before Labour court or Industrial Court - Petitioners cannot invoke Art. 226 of Constitution for seeking resolution of an industrial dispute raised by them - Even otherwise, disputed questions of facts, cannot be gone into in writ proceedings. (Para 8)