Biggest Cities once in the British Empire

Name the biggest modern-day urban areas whose territory was once part of the British Empire
according to citypopulation.de and this map
Quiz by relessness
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Last updated: March 9, 2016
First submittedMarch 9, 2016
Times taken863
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Pop.
City
26.4 mil
Delhi
24.3 mil
Karachi
23.2 mil
Mumbai
22.0 mil
New York City
17.6 mil
Dhaka
17.1 mil
Lagos
16.8 mil
Cairo
16.0 mil
Kolkata
Pop.
City
14.4 mil
London
13.4 mil
Johannesburg
10.5 mil
Bangalore
10.2 mil
Lahore
10.0 mil
Chennai
9.8 mil
Chicago
9.0 mil
Hyderabad
8.4 mil
Washington
Pop.
City
7.5 mil
Ahmedabad
7.4 mil
Boston
7.3 mil
Philadelphia
7.3 mil
Hong Kong
7.1 mil
Toronto
7.0 mil
Kuala Lumpur
6.9 mil
Singapore
6.9 mil
Baghdad
+1
Level 65
Mar 9, 2016
Very cool!
+2
Level 71
Aug 9, 2017
Can you accept Calcutta for Kolkata and Bombay for Mumbai? Some people have outdated books and internet information.
+5
Level 54
Jul 9, 2018
Can you accept New York for New York City?
+3
Level 56
Aug 12, 2019
accept New York for New York City please!
+2
Level 56
Dec 11, 2020
Where did that website gets its population numbers... Boston has a 700k city proper, 2.1m metropolitan area, and 4.2 CSA.
+1
Level 69
Feb 2, 2021
Numbers out to lunch
+1
Level 79
Mar 17, 2021
It's Jetpunk standard to accept NYC and New York for New York City.