If we put our bias of badly wanting to see Munzar together aside for a second and try to weigh good and bad aspects of Munna, Faris and Rehmati who are rivals for getting Zarnab, that's i think what we get:
Faris' resume
Already engaged to Zarnab. His strongest point. After watching this episode, there should be no doubt he really loves Zarnab. He has newly started to consume illegitimate money. Looks it's his first attempt. Reluctantly meets and friends with Mifa for her favors towards him.
Munna's resume
Fallen in love with Zarnab more intense than Faris and Rehmati. Obviously his money comes from haram sources though he's selective about it avoiding low level like Batha, murders etc. He's claiming a girl before Rehmati and his friends who's currently engaged. His weakest point if we want to see him as hero of the story. Plus Zarnab hasn't shown any such thing for Munna that he's calling an actively engaged committed in a relationship girl Rehmati's bhabi.
Rehmati's resume
Apparently in love with Zarnab to a level he can give his life. His money obviously comes from haram sources. He's claiming and already decently proposed a girl who he knows is already engaged while there's no response from Zarnab. He also isn't involved in Bata but can murder for his interests. So probably the baddest on the roster.
Coming this far i am a bit confused to see male protagonist of the story.
Very good point of view 
Rahmati obsession seems real with Zarnab and it makes sense too. He doesn't love Zarnab he is middle aged 50+ man who just lusting over a girl. So he is out of picture completely. He is a negative character.
To be very honest i am not relating with Munna's love for Zarnab. Yes you saw a girl ,fall in love with her but how can you change to 180 degree. He is ready to fight with whole world for Zarnab is not making sense. What one triggering point which made him rebellious
. Writer should add more scenes how Munna fall deeply in love with Zarnab and now he wants to change himself.
In this whole scenario Faris love feels real. He really loves Zarnab. Don't know whether its his Obsession or not. He is not hiding his love for Zarnab in front of mifra. Yes he started to misuse his seat and position for His benefits but Same thing Munna and Rahmati also doing.
Faris,Rahmati ,Zarnab, Zarnab's father all characters are powerful and making sense to me but For me, Munna's character is weakest link in this whole story . I am not relating with him.
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Ishaani
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