Apex domains cannot have CNAME records.
Question and response
Question
dig megahostzone.co.in. NS
Answer
megahostzone.co.in. 5 NS ns2.megahostzone.co.in.
Authority
The response has no authority records.
Additional
ns2.megahostzone.co.in. 5 A 103.16.100.14
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0