Which Asian country is the most populous democracy in the world?

Japan, South Korea, Taiwan, Mongolia, Israel, Cyprus, and India are all liberal democracies that are part of Asia. There are many other illiberal or quasi-liberal democracies in Asia, such as Malaysia, Indonesia, Cambodia, Bangladesh, Pakistan, Iran, Turkey, Iraq, Jordan, and Georgia. Nepal also recently (September 2015) ratified a new constitution that turned the country into a liberal democracy. It will take some time to see whether this new form of government holds.