Apex domains cannot have CNAME records.
Question and response
Question
dig resonance.ac.in. NS
Answer
resonance.ac.in. 5 NS marty.ns.cloudflare.com.
resonance.ac.in. 5 NS danica.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0