I have this scene in my mind and i think that the story could go in this direction...........
So Bansuri is about to leave and maundy tries to catch her...........santudi who is watching this captures this on tape.......( dont ask me about her technological classes)......Then when they are about to leave santu plays this CD on tv.................everyone is stunned and specially Maundy...............She then calls police and says here is the proof and here is your culprit..........She then goes towards Maulik and slaps him and so does sandy............and police says you are under arrest............so sandy looks for this opportunity and take out his gun and puts it on Santu's head..................now everyone is even more scared ............then he confess everything he did.............tada that is also on tape courtesy of police member....................
Then He says to let him go or else he will kill santu..........he says its santu who found out about them and they have been doing this for 10 years and no one found out about it................so somehow santu escapes his clutches and Sandy shoots her on her chest and one bullet on stomach.............she falls down in pool of blood..........DM who saw this scene is stunned and somehow manages to get hold of Sandy's gun and then police arrest them............before they take these pimps down Dm ask Maulik for this reason...........he says how DM never understood him and bla bal..........
Then Dm takes santu to hospital and flashbacks of scenes how she stoped him from eating sweets...........how she helped him with her attitude................then doctors take her to the operation room..............then doctors comes out and says that sorry i dont know if she will live or not............if today's night passed by then we might be in a position to say something................Dm ask permission to go see her and they give him.................he is crying and says tu kivi duffor che.............aaj tune mujhe bahut chota bana diya hai................i suspected you and you sacraficed your life for my family................then we see santu's heart beat go down............
Nurse comes down and then they ask DM to get out of this room............all the family members are now outside the room...............seeing this condition Birwa finally confesses and says that she killed arjan and scene goes in flashback..........
Now after some time santu is recovered and when its time for family members to pick her up from hospital she is not there.................as some of you have suggested that she might give house keys, POA and Chuta cheda papers to champa and will ask her to give this to DM..................she also leaves this letter to Dm and appolozie for her bad behaviour and bla bla........
DM feels bad and ask champa where she is?.................he is now on a misson to find santu.................everyone feels guilty and specially Birwa and DM...................DM cries his heart out.................he calls someone on the phone to find out about santu....................i dont know what happes next