Mailsecurein02.gsmc.tatacommunications.com has no NS records.
NS records for this zone are defined at gsmc.tatacommunications.com.
NS records for this zone are defined at gsmc.tatacommunications.com.
Question and response
Question
dig Mailsecurein02.gsmc.tatacommunications.com. NS
Answer
The response has no answer records.
Authority
gsmc.tatacommunications.com. 86400 SOA dns1.tatacommunicationsdns.com. root.dns5.tatacommunicationsdns.com. 2026031806 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0