@Debalina..i so agree we are not fools so much to swallow everything creatives threw at us..
From beginning ankita is shown as Nimrit fighting for injustice with the face of Natasha..first thing she did came to Amritgargh to meet her husband and next we know the rest.
All those flashback and wedding mantra ..agam saving her from amrit and his heart starting beating for her..rippan recognising her daughter ..the mother instinct...this already proves she is Nimrit and today how she avenges Amrit at that cliff..
As i mentioned in another post Dimple character may be a complex one..she has this mysterious aura by what i saw yesterday..Till now she has been shown here and there in Amritgargh but not looking for Agam or palace etc..she will have a major part to play in the story but in a different avatar..