Conversation so far:
what part of the world is india in
India is in South Asia
What other countries are in South Asia
The countries of Afghanistan, Bangladesh, Bhutan, Maldives, Nepal, India, Pakistan, and Sri Lanka form South Asia
What's the population of South Asia
As of 2018, the population of South Asia is 1,814,014,121

Question: what's the area
Self-contained rewrite: what's the area of south asia