I have been suffering with this condition for several years now. As far as I can make out, it is a parasitic disease, and once it enters your system, you have no chance of recovery. I have found that the only way to control the illness is by booking another trip.
A large amount of people are afflicted with this condition, but some people have been found to have a resistance, and can quite happily holiday once, and not need to visit again.
Symptoms of the disease are:
Gazing longingly at the Kingfisher bottles on the shelf of your supermarket
Taunting the fishmonger with the phrase "Call them things king prawns? They'd be called shrimps in Goa mate".
Watching every TV documentary connected with India
Comparing expensive meals in your local Indian restaurant with the cheap and cheerful fare of your favourite beachshack.
At the moment, there is no know cure for this condition, but the officials in Goa seem to be trying their best to come up with one!