Explanation

China's National People's Congress (NPC) is the largest parliamentary body in the world, with over 3,000 members.

List of countries

1. China - National People's Congress (NPC)
2. India - Parliament of India (Lok Sabha and Rajya Sabha combined)
3. United Kingdom - Parliament of the United Kingdom (House of Commons and House of Lords combined)
4. Pakistan - Parliament of Pakistan (National Assembly and Senate combined)
5. Bangladesh - Jatiya Sangsad