How to configure Belkin N150 Router with TATAINDICOM Wireless Modem?

Sir, I had taken one connection for broadband internet for my relative at Delhi. But then had give the connection with a Dish Antenna with one RJ45 Connector which can be only connect with one computer. But there have two laptop with Wi-Fi capability. So may I connect the RJ45 cable to the Balkin Router as I can confugure the Router and can made a own network for our own purpose. What is the Gateway of the TATA INDICOM at Dilhi, India. The Service Agent is not suppling me the gateway address. Please help me. Thank you.