Airtel Broadband DNS issue March 2013

[liverpool79]

name a few sites..

Sites now opening fine,whatever the problem was,it resolved itself.

 

[amar]

truecaller.com tatadocomo.com was not opening few minutes back... now working fine.

 

[ASHISH67]

Guys help me out there are number of websites which are not opening for me for the past 6 hours.
CNN.COM
www.downforeveryoneorjustme.com
nextworld.in

 

[IBFUser]

^^ all 3 opening fine here. using airtel dns

 

[ASHISH67]

Websites still not opening for me.How do i change my dns ?I am using windows 7 and Netgear DGN1000 router.