As Paras highlighted that Asim reveals his strategy beforehand when Asim said he won't save anyone's letters, Paras was right but you can't take it as a negative point as this is one of the thing that gives Asim an upperhand for being honest as well as straight forward yet so strong without all this prominent negativity.
Asim made it to clear to everyone that game over emotions. He played so well that he got the letters twice. The first time he had to give it to Arti because Arti being the emotional personality as always he couldn't do that to her. He was over whelmed when Mahira gave the letter to him BUT I AM SO SORRY no one does goodness to someone with the intention of the other giving it back to them in literally like 5 minutes. I agree Mahira did it without even knowing whether Asim will even get her letter or not and it is natural of her to feel bad and she did patch up with him again but Paras made it sound like God knows what.
It wasn't totally wrong of Asims part because Mahira and Sana always have made fun of him, literally so much fun, fought with him so much and he has gulped it down his throat thousand times and then she does one good thing for her, as a human it takes some time to take it in your system, accept and appreciate the sudden kindness, the changed behavior and react to it and he clearly couldn't do that especially being in the task and within minutes.
So I feel it was a a very good balance of game spirit and emotion and he perfomed brilliantly in Katputhli task also.