I think, Sangram when got a chance to make his own decisions to empty the bottles, he used it very wisely.
He is not the kind who would shout, abuse and play cheap tricks to win the task or the game for that matter.
So when he got a chance, he became very strict and started to pick up on small small things especially of Kushal and Gauhar and didn't focus on Andy much. This way he made Ajaz a clear winner as he is weaker when compared to Gauhar or Kushal in the finals.
He chose his opponent in the finals very cleverly even by not being a part of the game.
The next one to go after Kushal will be Gauhar I think as Kushal's eviction was also fake and so will be Gauhar's as they both stood up against Armaan for Sophia's issue.