mail.waridtel.com has no NS records.
NS records for this zone are defined at waridtel.com.
NS records for this zone are defined at waridtel.com.
Question and response
Question
dig mail.waridtel.com. NS
Answer
The response has no answer records.
Authority
waridtel.com. 300 SOA ns4.cyber.net.pk. neteng.cyber.net.pk. 2020030301 10800 3600 1728000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0