KOCHI: NATCON, the annual national convention organised by the Indian Society for Training and Development (ISTD), concluded at Xavier Institute of Management and Entrepreneurship, Kalamassery, on Friday. At the valedictory function, Malayalam University Vice-chancellor K Jayakumar delivered the keynote address. ISTD-Kochi chapter chairman and regional vice-president P T George, NATCON co-chairman Jose P Philip, NATCON committee chairman S R Nair, Xavier Institute-Kochi director Prof Amalanathan and secretary Soman Gopalan spoke.