India white pages
bsnl.co.in/onlinedirectory.htm

Telephone directories
calcuttatelephones.com/directory.shtml
chennai.bsnl.co.in

India phone numbers
ap.bsnl.co.in/enquiry/enquiryhome.asp
phonebook.bol.net.in

Local phone numbers
upw.bsnl.co.in/
assam.bsnl.co.in/TelephoneDirectory.htm

keralatelecom.com/newdqasp/newdq1.html

India yellow pages
yellowpages.sulekha.com
iypol.com
indiacom.com/yellowpage/telephonedirectories.asp