Prime Minister Narendra Modi will on June 16 and 17 chair the first national conference of chief secretaries in Himachal Pradesh's Dharamshala during which implementation of a common development agenda and a blueprint for cohesive action to achieve people’s aspirations will be discussed, his office said. More than 200 people representing the central government, all states and union territories, and domain experts will participate in the conference at the Himachal Pradesh Cricket Association Stadium, the Prime Minister's Office (PMO) said in a statement.