UNFAIR.

The last challenge between Dushyant/priya and Sai/tina was SO UNFAIR. WHY?

because dushyant and priya knows the strategy. they did the same challenge beating out pooja and manish!!  

yaa...i agree...

Maybe, they did have an advantage but they also had a disadvantage, because they had already done this task, and they had less energy than Sai and TIna because Sai and Tina only had to do this once, where as Dushyant and Priya had to complete the task twice.