Note : These are not free Gprs Settings. It is only the purpose if you forgotten your settings

Manual Vodafone Essar GPRS Setting
Account Name - Vodafone Live
User Name - leave Blank
Password - leave Blank
Proxy - Enabled/yes
Access Point Name - portalnmms
Proxy - Enabled/yes.
Proxy and Server address - 010.010.001.100
Proxy and Server Port - 9401 or 8080
Homepage - http://live.vodafone.in
Authentication Type - Normal