tpl-pri-exch01.trakker.com.pk has no NS records.
NS records for this zone are defined at trakker.com.pk.
NS records for this zone are defined at trakker.com.pk.
Question and response
Question
dig tpl-pri-exch01.trakker.com.pk. NS
Answer
The response has no answer records.
Authority
trakker.com.pk. 1800 SOA aarav.ns.cloudflare.com. dns.cloudflare.com. 2399216944 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0