How much ever i am trying to picturise Bajaj as a villain, my gut feeling says that he is here to teach some lessons to the Basus and Prerna.
The Basus, especially Mohini & Nivi - These two have always be the one screaming out loud and repetitively on how Prerna is a middle class girl. Though they both changed for a short time, now they are back to their original beings. Maybe that is why, it was a whistle-blowing scene to see Bajaj giving it back in a sassy manner to Nivi. KSG has really nailed this scene to perfection and i am eagerly waiting to see more tashan between them, which will lead to a realisation of the Basus of whom the real Prerna is. And that day they will realise what Bajaj understood about Prerna in the first go that 'There is nothing like a shubh muhrat; the moment Prerna comes in one's life is the shubh muhrat'.
Anurag Basu - In one of the opening episodes, it was seen Anu saying to his mother that he doesn't want to be known as Moloy Basu's son; instead he wanted to have his own identity and stand on his own feet. But, ever since Pre came to his life, it was only saving her, loving her etc etc. He couldn't even save his Baba's business from Komo and Bajaj. So, i feel that after the Swiss track, it will be shown on how Anurag the soft boy grows into a matured man who will rebuild the Basu empire after they loose the Swiss project.
Prerna Sharma - She has always been that impulsive girl who never thinks before she says or does something. She never goes into the depth of a matter before reaching a conclusion. And it is these traits of her that has always led her to much bigger problems. And I can see Bajaj has already started his work to show her the mirror. Many of us may be remembering how after the introduction of Mishka in Anurag's life, Pre started accusing Anu of playing with her feelings and at the end insulted him as someone who was behind her body. I am not pointing fingers at her, because any normal person backed by Shivi's words that Anu loves her would get heart-broken seeing Mishka back, and that too when Pre was about to confess her love to Anu. But what was not acceptable was she insulting Anu which was an impulsive action. Anu himself was confused and had not yet realised his feelings for her. And evenif his subconscious mind had realised it, his brain would have been resisting it as he was always not interested in Thornbird story. In such a situation how could he understand why Pre was behaving weirdly and he got hurt & left the room. And now that a similar track being played with Bajaj, we saw how Bajaj is showing Pre the mirror that not always what she thinks or says should be right. And with the dialog of him being able to get better options for a lesser price, it was like a tit for tat for what Pre said to Anu. Yes, this tough Bajaj is surely going to change this impulsive and emotional girl into a matured & sensible woman.
And the credit for making this long post for Bajaj solely goes to KSG. I am not his fan and except for few episodes of QH, i have never watched his shows. Even in QH, i didn't find anything exceptional in his acting. So, when news came out that KSG will be the next Bajaj, i had less expectations. And tbh, just like some of his own fans felt that Bajaj is not his cup of tea, i too felt the same, especially because of his dialogue delivery. But then i thought of how perfectly had EK had selected all the KZK casts and hence felt that she will not go wrong in choosing KSG and that too with a high budget. And i took a deliberate effort to understand his dialogs, after which i could never think of anyone else as Mr.Bajaj. That is how convincingly KSG is living the character of Mr. Bajaj. And that is how you should value the effort and hardwork put up by the actors, irrespective of whether they are your favorite or not.