Choose a level to begin. Then, try to name the largest Asian cities (min 50K population) in each square IN ORDER. To name a city, you must first click on the grid square to make it have a GREEN border. Then, type in the city answer for that square followed by a '.' (a period).
The squares will start with '0/5' (or maybe fewer cities if less exist in that square). Click on a square and enter the largest city in that square not yet answered (so, the largest city if you have yet to answer a city in that square). You will then have '1/5' and need to click on that square to name the 2nd largest city, and so on until you complete all the cities up to 5 (or less if less exist). If you name an incorrect city in a square it becomes 'locked' and turns red and you can no longer accumulate cities in that square.
You receive 1 point for the largest city in a square, 2 for the 2nd largest, and so on.
At the end of the quiz the largest remaining city you haven't named will be shown in each square.
Quiz Takers 
I did this as practice with Google Maps assistance. It does not accept Bhilai as an answer and I tried just about everything nearby and every variation I could think of.
Was under ‘Bhilai Nagar’ – fixed to accept both now.
On the plus side, I will now always remember Bhilai (and it’s a useful one to fill gaps in coverage mode).