Well categorized, enormous collection of old photographs of the Indian subcontinent at oldphotosbombay.blogspot.in.
100 year old photos of British India at http://www.rediff.com/news/slide-show/slide-show-1-rare-photos-a-100-year-old-glimpse-of-british-india/20120508.htm
Photographs of old Shillong (1948) at http://www.cuttingthechai.com/2012/06/5837/vintage-photographs-shillong-1948-and-vallabhbhai-patel-calling-people-assam-lazy/
Photos of Hyderabad 1948 from LIFE magazine http://www.hyd-masti.com/2008/12/rare-hyderabad-photos-1948.html
