dns1.niig.com.np has no NS records.
NS records for this zone are defined at niig.com.np.
NS records for this zone are defined at niig.com.np.
Question and response
Question
dig dns1.niig.com.np. NS
Answer
The response has no answer records.
Authority
niig.com.np. 300 SOA dns1.niig.com.np. noc.niig.com.np. 2022110313 360 1800 604800 86400
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0