Apex domains cannot have CNAME records.
Question and response
Question
dig tm.net.my. NS
Answer
tm.net.my. 4 NS ns3.tm.net.my.
tm.net.my. 4 NS ns2.tm.net.my.
tm.net.my. 4 NS ns1.tm.net.my.
Authority
The response has no authority records.
Additional
ns1.tm.net.my. 4 A 210.187.85.33
ns2.tm.net.my. 4 A 210.187.85.68
ns3.tm.net.my. 4 A 210.187.85.33
ns1.tm.net.my. 4 AAAA 2001:e68:0:0:0:0:b:93
ns2.tm.net.my. 4 AAAA 2001:e68:0:0:0:0:b:b6
ns3.tm.net.my. 4 AAAA 2001:e68:0:0:0:0:b:93
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0