I am telling this from a neutral pov I don't think she is getting favoured. If you will see this fake tejran angle is affecting her image and game both. It's being showed that she tries to dominate karan but is it the eternal truth?? No it's not the truth because if it would have been the truth then teja would have tried to maintain good relationships with each and every person in the house and would have tried to play a game but what is happening?? Apparantly teja has no gameplan and no relationships in the house except with karan. Yes she has a strong voice and personality and takes a stand for herself but has no gameplan no relationships at all. While karan in the task has tried to play a game and has cordial relationship with others. Umar doesn't have a problem with karan but he has a problem with teja. So if umar and karan had a fight who will be the villain?? Teja as according to episodes she dominates karan. And in each and every wkv no mistakes of teja are justified or she is given even a chance to justify (that's fair as she does lots of mistakes). So makers don't want her in top 2 only if her voting is strong to be in top 2 then they can think or else there's no chance of teja going in top 2. So according to my analysis:
Is karan favoured?? Yes
Is shamita favoured?? Yes yesterday's episode is a big proof
Is teja favoured?? No not at all
Ps: This is my opinion and my analysis👍🏼