ns2.dildns.com has no CNAME records.
Question and response
Question
dig ns2.dildns.com. NS
Answer
The response has no answer records.
Authority
dildns.com. 3600 SOA ns2.dildns.com. shailesh.dil.in. 2016090700 3600 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0