Bangalore:IT major Tech Mahindra's Chief Executive Officer (CEO) Sanjay Kalra has resigned from the company to pursue other interests, the company said. Kalra was with Tech Mahindra for six years. Vineet Nayyar, Vice-Chairman and Managing Director of the company will take over the operational responsibilities as the company's CEO. Nayyar had served as the Chief Executive till last year, when Kalra took over as the CEO, it added. "Sanjay has been a key player in Tech Mahindra's growth. The board would like to acknowledge his vision, leadership and dedication in enabling the company achieve a premier position in the telecommunication vertical," Tech Mahindra Chairman, Anand Mahindra, said.