mumbai/new delhi, April 11 -- Tata Sons chairman Natarajan Chandrasekaran urged Air India employees to focus on execution amid industry-wide challenges, breaking his silence on developments at the airline after chief executive officer Campbell Wilson's recent resignation. "Our future is bright and we have laid a strong foundation for our ambitions, but we are going through a challenging period, the impact of which is most visible across the airline industry," Chandrasekaran reportedly told employees in a townhall at Air India's headquarters in Gurugram, Haryana, on Friday. "What matters now is staying focused on execution. Our focus should be on what is within our control, where we can improve, be precise on costs, and remain grounded in th...