if the makers are going 'who's baby is it?' way... then Gangaa, for her over emphasized self-respect, should...
NOT marry Rudra (who she has been addressing as Bhaiya since childhood)... where is the self-respect in giving someone else's name to her child...!!!
in a real life scenario, a girl would think that 'love' was fake and the guy just wanted to sleep with her... coz even Gangaa has no clue why Sagar does not remember the night... besides Sagar was pushing her for that since their marriage announcement... hence, what Gangaa should...
DO is file a case of rape and deceit agaist Sagar... prove that the baby is of Sagar by way of DNA report... win the case and legally get the real father's name for her child... refuse to forgive, forget, and marry (oops REMARRY Sagar )... complete her studies... give birth to her child in Banaras... become a successful lawyer... all this in front of the Chaturvedi's...!!!