Watch for feedback. This seems the latest.
Confirm you get DDNS and Client tr_069 options
192.168.1.1/main.html.
Disable tr_069 , or keep it for automatic FW
update by Airtel.
yes , it does have ddns and client tr_069 option... is the firmware really 4 110bx? as airtel netxpert keeps identifying as 220bx