ns3.restricted.in has no CNAME records.
Question and response
Question
dig ns3.restricted.in. NS
Answer
The response has no answer records.
Authority
restricted.in. 1489 SOA ns2.restricted.in. pdns.gov.in. 2025121802 24600 84600 1209600 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0