Take context from the input text and decide on the accurate relationship between 'Bharti Airtel' and 'director' from the options provided.
Options: parent organization, operator, director/manager, subsidiary

"Our customers are the reason for us to be in business, we therefore constantly introduce innovative initiatives with a commitment to deliver a world class experience to them," Ajai Puri, director - Market Operations, Bharti Airtel (India & South Asia), said.
director/manager