syslog.maa.sify.net has no CNAME records.
Question and response
Question
dig syslog.maa.sify.net. NS
Answer
The response has no answer records.
Authority
maa.sify.net. 3207 SOA syslog.maa.sify.net. hostmaster.sify.net. 2000101980 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0