Hello!

I hope this is a relevant forum to point out DNS issues related to AS55836 VoWiFi. 

1. A/AAAA records for ns1.vowifi.jio.com, ns2.vowifi.jio.com are missing
2. ns1.vowifi.jio.com(49.44.59.6), ns2.vowifi.jio.com(49.44.59.7) don't respond to queries over TCP

3. There is another broader issue which I am seeing in the context of responses by ns1.vowifi.jio.com/ns2.vowifi.jio.com to client subnet (EDNS0) in DNS query. 

If someone from the DNS team at AS55836 can reach out off list, I'd be happy to share the measurements.