These are the biggest* cities in Asia starting with the letter O. Try to guess them. As additional hints, the flag of each city's country and the cities' population figures* are given. The Jetpunk standard for spelling the city names has been used as far as possible; this mostly means that Indian cities are listed by their more modern (less known) names and Chinese cities according to Pinyin romanization. Otherwise cities are listed by their common English names.
*See caveat below.
The population figures are not by urban area, which is usually used on Jetpunk, but by the census results reported on citypopulation.de. This means that cities from different countries are not well comparable, because different countries measure differently. So the positions on a top list become a bit arbitrary. But hopefully the cities can still be guessed with the help of the other clues.
Regarding intercontinental cities: For these cities I only count the population on the Asian side. I couldn't find any data on how many people live on each side of Orenburg. But the total population of Orenburg is 540,000 and on the map it looks like about 1/6 of the built up area of the city is located in Asia. 1/6 of 540,000 is about 90,000, so I think there's too few people on the Asian side to make it into this quiz.
There's also a city in Kazakhstan called Oral (teehee) on the Europe-Asia border, but it seems like the whole city is on the European side, so I haven't counted that either.
There's also a city in Kazakhstan called Oral (teehee) on the Europe-Asia border, but it seems like the whole city is on the European side, so I haven't counted that either.