Source Data Reference for:

City = Surat
Time = 1700

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Surat	1650	125,000			Tertius Chandler	Four thousand years of urban growth	p482
Surat	1650	800,000		at its height	n/a	http://www.wikipedia.org/	eng2015
Surat	1700	50,000			Tertius Chandler	Four thousand years of urban growth	p77
Surat	1700	50,000			Tertius Chandler	Four thousand years of urban growth	p516