how Rk reached madhu to protect her from Ballu risking his life is a quiet lucid proof amongst many more which r not hard to recall if ppl put a little stress on their minds
so now when Rk comes to know dat madhs life is in danger from both the gangsters and police too the gansters recognise her well and she is a criminal by law so he brought her to his mansion and want her to b there but how he gonna let her there bcz madhu will surely not let herself there he cant close her in a room or with any argue make her to live there then i dont feel any negativity in cutting his hand with a knife putting nearby which surely lead us to positivity as this junoony act will become the reason of rishbala closeness and madhus protection who has done a dangerous deed ofcouse
P.S all the hand cutting stuff is just Rk trick to let madhu come to line and i m waiting to have his sexy smirk after madhu affirmation😉