I would like to start this topic with this post here.
Episode 26 of #ziddidilmaanena perfectly set Karan and Sid up as foils to one another. Each of their reactions to leaving the academy threw the other's into high relief. Karan trusted the army and its process so implicitly that he even encouraged Sanju to help Rawat in his own investigation, not once doubting that there may be ulterior motives at play. Meanwhile, Sid got so carried away with the rejection he faced from Mrs. Batra and Sanjana that he doubted the one person who knows him inside out and takes his feelings seriously. Similarly, Karan has an absolute sense of belonging in the army vs. Sid's complete lack of belonging anywhere; the flipside of this is Karan's identification with and absolute loyalty to an abstract institution vs. Sid's ability to see people for who they are rather than what they are (army or civilian). It's setting up a journey where they'll meet in the middle: Karan learns to see himself as an individual outside the army and Sid learns to be part of something bigger than himself.