BSNL Online Telephone Directory
BSNL.OnlineDirectory

ISD, STD Codes and State-wise Telephone Directory. Since they are maintained by different states, the quality is inconsistent, as usual with Government sites.

Khoj India Directory
Khoj

They call themselves the "Great Indian Search Engine". One of the oldest Indian portals around.

Indian Web Directory
IndiaBook

Sites organised by subject.

Classifieds 
CraigsList

Need an apartment? A job? A date? All three? No matter what you seek, chances are you can find it on craigslist. Founded in San Francisco in 1995, the free online-classifieds site is now available in over 300 cities worldwide. The design is far from flashy, but function is all that matters when you've sworn off ad support. Gone are the days of circling ads in the paper. If you're looking for something, be it work or a workout buddy, check craigslist.

Who's Who
NNDB

NNDB is to world culture what IMDB is to entertainment: a database of notables. It is a veritable who's who....

Government of India Directory
GOIDirectory

A Directory of Government websites. As they say: "A one-point source to know all about Indian Government websites at all levels and from all sectors". Don't forget to check out our President's site!

Indian Yellow Pages
IndianYellowPages

India Yellow Pages & Business Directory of Exporters, Importers and Traders. Categorised search.

India Directory
TheIndiaDirectory

"The India Directory is a comprehensive listing of Indian Manufacturers, Indian Exporters, Dealer/Retailer, Wholesalers/Distributors and Importers from around the globe. Our Trade Bulletin is considered to be one of the largest in India and our directory comprises of members from around the globe"

Internet Archive
Archive

Archiving more than just the Internet (archives are accessible via the "Wayback Machine" on the home page), the Internet Archive also includes tremendous collections of concert recordings, moving images, and much more.