I agree- i really enjoyed NainaB character, i know she played the neg role however we did see some good points in her; we knew that she really loved her family, especially her dad.
In the beginning u can all understand y she wanted the land-whn she married Rahul she wanted to go in as an equal in terms of wealth, its just the way THEY (remember Rahul was complicit in the plan) went abt doing it was wrong.
NainaB was the mirror image to KK without her KK goodness and scarifice loses its significance.
Also if u take both NainaB and KK put them together u actually get a 'normal' person; caring and selfish, good and bad.
However ido think it is very unfair to NainaB and Kritika in the episodes post-murder they way Ekta has treated her.
No matter wht she was a major character and deserved that her murder be a major theme for alittle while at least, but it was glossed over to make way for Rahul scarifice-boring and predictable!
It wouldve been better use as wht we're now seeing, revenge and war between KK and Aman! If we cant have RaKun or any new romanace-not Rahul-NainaO been done WAY too many times! Then lets have something juciey-from best of friends to worst of enemies trapped in a seemingly 'happy' marriage! Ekta u can get a lot more mileage out that and make it really interesting that fans get hooked on to the one up-manship between Aman+KK.
I also think this gives justice to all the hard work Kritika put into NainaB character that she is not forgotten and remains in spirit if nothing else.