She is strongest female lead known to me.
She does have a past which she hides either scared or unknown reason.
I was half sure before reading spoilers(not yet confirmed or mentioned)
she might see someone from her past in this marriage and try to leave from there.I dreamt this way then
after reading spoilers it looks pretty good possibility
her character is different from all other female leads.
she is scared to accept happiness/love is possible for her .Even if she realizes she is in love she will never let any one know.
see her past she lost a sister at young age,she would have remembered what happened before too.life took hard turn.
then in orphanage cant judge but bad
then adopted by good family again happiness short lived they died and struggle again started
now responsibility of a handicapped boy and earning at young age.
she thought of goot contract to solve her problem then again a cat took it away(happiness snatched)
she is literally scared to be expecting happy life as everything is snatched away from her.
Her strength is herself she have self respect she is dazed at present.
when fights with shivay was going on then also she was firm zindagi ney muzhey hara na paayi tum kounsi cheez ho.
its like shivay was a tiny problem among what she faced .
then her fear of darkness is a symbol of much complex things beyond our imagination.
her attitude towards big family names,I was sure the first day itself that its her loss that is speaking she lost everything might be because of a name (might be like a parent's love affair rejected for family prestige and could be murdered too)
I believe it 100% she is strongest female lead with strongest past and future.
she is no typical lead cryin for family type she accept fast she accept what is for her and she sees happiness in it
SAKIV!Vikas Chandra