MNTL Delhi Telephone Directory has search option to search for a residential individual telephone number by providing name, locality, street or building etc and it will list all corresponding entries with name, address and phone number.
Similarly it has option to search for individual business, company or group, search for address providing telephone number, NSD and ISD codes directory, change in number, ministries directory, hospitals directory and link to national phone directory.
Phone : 1504,22221504 23359273
Email : feedback.delhi@bol.net.in
Web : http://phonebook.bol.net.in/