Interesting: Unable to open specific websites !

[baudhayan]

this seems 2 b a definite problem (mite b intermittent) with the MTNL DNS servers. when u r connected 2 office via VPN u use ur office's DNS servers (as u told) & these DNS servers internally query d Service Providers DNS servers from whom ur office has taken net connection. I believe ur office net connection is not from MTNL. Anyways 202.138.96.2 & 202.138.103.100 r d DNS servers for reliance which seem 2 respond properly. Try changing ur Internet connection settings 2 use these servers & chk whether it works. Anyways try telnetting 2 port 53 of d MTNL DNS server whenever u rcv this problem. If d DNS server is working perfectly u shud get a blinking cursor else u'll get a connection timeout msg.