ns21.ssdcloudindia.net has no CNAME records.
Question and response
Question
dig ns21.ssdcloudindia.net. NS
Answer
The response has no answer records.
Authority
ssdcloudindia.net. 8686 SOA ns21.ssdcloudindia.net. hostmaster.e2enetworks.com. 2026030501 86400 15 604800 108000
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0