Dube`s exit follows the resignation of its chief financial officer, Amit Agarwal, earlier in the day. : Dube`s exit follows the resignation of its chief financial officer, Amit Agarwal, earlier in the day. Grounded carrier Jet Airways Chief Executive Officer Vinay Dube has resigned from the post Tuesday, a day after its deputy chief executive and chief financial officer Amit Agarwal quit the company. An Indian-American, Dube had joined Jet Airways in August 2017 after serving various roles at Delta Airlines, Sabre Inc and American Airlines in the US, Europe and Asia.