A strong proponent of leveraging of modern technological innovations, Modi expanded his use of 3D technology, first seen in his campaign in Gujarat in 2012, across the country and the unique medium itself drew big crowds especially in the hinterland. 'Chai pe charcha' programmes held across 24 states in several rounds and, internationally, across 5 locations in 15 countries. Some 10 lakh people had participated in this innovative programme, the party said.