shell:$ nslookup -timeout=2 -retry=1 'chat.ng.airtel.com'
;; communications error to 1.1.1.1#53: timed out
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	chat.ng.airtel.com
Address: 196.46.244.71
;; communications error to 1.1.1.1#53: timed out