ns3.multi.net.pk has no CNAME records.
Question and response
Question
dig ns3.multi.net.pk. NS
Answer
The response has no answer records.
Authority
multi.net.pk. 10785 SOA ns1.multi.net.pk. admin.ns1.multi.net.pk. 2026021902 43200 1800 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0