Shashi Tharoor cites example of Australian exit polls to prove them wrong

Congress leader Shashi Tharoor tweeted his reading of the prediction as something that can also turn out "all wrong".
He tweets, "I believe the exit polls are all wrong. In Australia last weekend, 56 different exit polls proved wrong. In India many people don’t tell pollsters the truth fearing they might be from the Government. Will wait till 23rd for the real results."