Anurag is currently endearing because of Parth's acting ONLY. Otherwise, his dialogues and situations are created to make him look juvenile while every effort is put in the writing to give Bajaj the upper hand.
Its his dialogue delivery, expressions and attitude he shows that makes up for the bad writing for his character currently. Any lesser actor would look like the pesky fly that Bajaj recently called him.
This is why Parth as Anurag is such a great achievement for him while Manik was an author backed role through and through in a well written show so its a lot easier to shine through than in situations like the current scenario for Parth in Kzk2.
I love his dedication to his craft what ever the circumstances and he showed the same during the Kyy2 as well despite the not so good writing specially at the latter stage.