Swara rejects Lakshya when he proposed her for the first time...She feel disgusted with him and broke her all ties(friendship) with him coz he played with her sister's feelings..
On the other hand.. Ragini joined hands with Sanskar who that time is almost a stranger to her..Their plan was Swara to accept Lakshya first..then they want to show everyone that she's a drug addict and characterless women by arranging false evidence against her..then finally when everyone thinks the same..Lakshya would refuse to marry her and his family is not going accept Swara at all..then everyone would be thinking that Ragini is the one for Lakshya..and Lakshya also accept his best friend Ragini...So,that was the main plan...right..!
Now let me know..how would a sister(Ragini) do these to another sister(Swara)...??
Okay get it..Ragini supposed to do all these for her so called "pehla pyaar"(FIRST LOVE)..right..!
what LOVE..!!! Really..Ragini really loves Lakshya..! She joined hand with that person(Sanskar) who wants to destroy her so called "first love"...if she really loves him then she could never joined hand with Sanskar...She would tell him he's wrong..just like Swara did on that confrontation scene..( I think from that time Sanskar would starting fall for Swara..coz she's the first one who told him he's wrong..neither his Mom nor Ragini did that)
So..for me it's Ragini who breaks swaRAgini first..She prefers Lakshya who broke engagement with her 2times..rather than her sister Swara..
One more thing I want to say...Swara is not MAHAAN at all..there are many posts on this forum which tells Swara is not MAHAAN..she is a human being at first..