Bangalore International Airport (BIAL) offers free WIFI internet connection for passengers. The signal is weak outside the arrival and departure lounge. But you will get the full WIFI inside the airport.
As you enter the airport, you will get WIFI connection offered by TATA DOCOMO. Connect to it.
To access the connection, Open your browser and you will get a login page in your browser. Enter your mobile number to verify and to get the pin number for the WIFI connection at Bangalore airport.
The free WIFI connection offered is only available for 45 minutes.
If you already have TATA DOCOMO connection, you can use your username and password to access the wifi connection.