In the context of the input sentence, determine the relationship between 'Bharti Airtel' and 'director'.
Options: parent organization, director/manager, operator, 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