26 Apr 12. Tangent Link to Partner with the Confederation of Indian Industry. Tangent Link and the Confederation of Indian Industry (CII) have agreed to join forces to showcase a series of cutting-edge Aerospace, Defence and Security related conferences and workshops in India’s capital, New Delhi. The launch conference will focus on Airborne Early Warning & Control and be held at the Habitat Centre, New Delhi on the 13th and 14th June.