Hi Sandeep
An EIGRP route with an AD of 5 is an eigrp summary route. You can set EIGRP summary routes with the following command
ip summary-address eigrp 1 "network" "subnet mask" "AD distance"
Note that if you don't set the AD then it defaults to 5.
Attached is a link with more details
http://www.cisco.com/en/US/docs/ios/12_2/iproute/command/reference/1rfeigrp.html#wp1021694
HTH
Jon