Sacch Ka Saamna (2009)

Contestants are quizzed on 50 questions prior to the show while being connected to a polygraph machine. The polygraph measures the contestant's bodily indications, such as heart rate, blood pressure, etc., and uses those readings to determine whether or not their response is accurate. The contender is unaware of the polygraph results for his or her responses. The participant is asked the same 21 questions again during the live programme. If the competitor answers truthfully, they move on to the next question; if they lie or just refuse to respond to a question after it has been posed, the game is over and they forfeit their whole prize money.