I don't think you need to go THAT far ... but I never arrive at an Indian airport without a confirmed, pre-paid transfer already arranged. That way I know that if the guy is holding a sign with my name on it, he isn't a scammer.

...especially as a woman traveling alone (often) with huge suitcases that I would prefer NOT to carry!

I also use the GPS on my blackberry when I am in a taxi to make sure we are going in the right direction and not taking the scenic route.

Truly