To be able to hear everything and not able to do anything made him feel useless. To know every, to know the culprit behind it made him frustrated and angry at the same time.

It was Kabir all along. Being his assistant, he has access to many confidential documents of the company. It was him who leaked their new project to the rival company which lead to the investors withdrawing themselves out of the company. It was him who kept notes, who was behind him all along.