there is not much difference between between GDP of mumbai and Shanghai ,but i must admit that shanghai's skyline is much better
List of cities by GDP - Wikipedia, the free encyclopedia
Asia, Central & South
MumbaiRank City Country GDP in $ID BN Population (MIL)
1 Mumbai India $ 208 18.978
2 Delhi India $ 167 15.926
3 Kolkata India $ 104 14.787
4 Dhaka Bangladesh $ 78 13.485
5 Karachi Pakistan $ 78 12.130
[edit] Asia, East
TokyoRank City Country GDP in $ID BN Population (MIL)
1 Tokyo Japan $ 1479 35.676
2 Osaka Japan $ 417 11.294
3 Hong Kong China $ 320 7.206
4 Seoul South Korea $ 291 9.796
5 Shanghai China $ 233 14.987