I quite agree, the porters are really annoying at times, they lift your cases off before you get a chance to find them.
When i was returning to the UK this April, it was an early morning flight so we got to Dabolim about 4am, i couldnt be bothered arguing with the porter to take my cases in, and when they went through the xray machine, the porter asked for £1, but i only had enough english money on me to see me through the flight, so i gave him 50rupees, and he wasnt happy at all.