Imran Khan’s Party Pakistan Tehreek e Insaaf is the 6th largest political party in the world after the parties of the US, China, and India.
India’s BJP is the first number with 180 Million members, followed by China’s Communist Party with 96.71 Million members. America’s Democratic Party at 3rd and India’s National Congress at 4th position.
America’s Republican party is at 5th with 35 Million members. While Pakistan’s PTI is at 6th with 16.9 Million members. PMLN and PPP are not even in the Top 100, according to the data extracts from Wikipedia