ns4.nic.in has no MX records.
Question and response
Question
dig ns4.nic.in. MX
Answer
The response has no answer records.
Authority
nic.in. 900 SOA nicnet.nic.in. nsadmin.nic.in. 2026030211 1800 0 1209600 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0