Apex domains cannot have CNAME records.
Question and response
Question
dig exportguruji.com. NS
Answer
exportguruji.com. 5 NS ns1.thebizsolution.in.
exportguruji.com. 5 NS ns2.thebizsolution.in.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0