In some versions of ubutu we can not find settings of aircel,docomo , reliance etc We find the settings of airtel,bpl,bsnl only. By use this we can connect usig any connection Here i illustrate "How to connect using AIRCEL" -->Network connection -->VPN connection -->configure VPN --> Mobile Broadband -->Add -->Forward -->Select any provider -->Forward -->We can specify name of connection(Here aircel) -->Apply -->Select now created one and edit it -->change the change the default APN to 'aircelgprs" --> IPv4 Settings --> (change content in "DNS Servers" to 202.56.230.5, 202.56.240.5) it's not compulsary -->Apply now new setting created so easily connect using this setting it's 100% working