0 BREAKING NEWS IDFC hires top executives from HDFC Bank for it's retail operations; plans to start business on October 1 By Atmadip Ray & Saikat Das , ET Bureau | 21 Aug, 2015, 04.00AM IST   KOLKATA | MUMBAI: IDFC Bank, which plans to begin business on October 1, has hired senior HDFC Bank executives to hammer out its retail strategy.
What is the relationship between 'HDFC' and 'HDFC Bank' in the context of the input sentence.
Options: operator, subsidiary, employer, platform