Apex domains cannot have CNAME records.
Question and response
Question
dig evalbee.com. NS
Answer
evalbee.com. 1 NS dns3.bigrock.in.
evalbee.com. 1 NS dns2.bigrock.in.
evalbee.com. 1 NS dns1.bigrock.in.
evalbee.com. 1 NS dns4.bigrock.in.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0