Lols Mangala was a grey shaded character from the time it was introduced so where is the question of her being turned negative?
This is the woman who closed her ears to the shrieks of a young girl who was being raped night after night in the next room outshone the lead that too a lead who is supposedly useless but nevertheless sprang to the rescue of any person in distress?
Lols a woman who thought as long as the girl is with her she could leave the world to it's fate outshone the lead that too a lead with all her impractical ways fought to make the world a better place?
The so called weak and useless lead never thought of her weaknesses or inadequacies when it came to reaching out to people in distress.The so called strong side character was the one who had the habit of thinking what she might gain or lose by helping someone.
There is a good reason why some people predicted that Mangala would stoop to conquer.It's another matter that Mangala's behaviour was even worse than what was predicted 😛
So the question of a side character outshining the lead which was around for more than seven years does not arise at all.
Anandi whether her life is a cup of joy or full of grief and sorrows she remained the same.It is the likes of Mangala whose behaviour changes according to the state of their life 😛
It takes a lot to cling on to the values one believes in even if their cup of life is filled with grief and sorrows.That's what strength of a character is all about.
Character's strength is not just accomplishments but it is about withstanding the adversities and bearing losses with equal grace as receiving blessings that life brings in.
Nandini when she was in Akheraj's house she was great because she didn't allow the negativity cloud her judgement.Shivam now looks impressive because he didn't allow negativity to swamp him and he clings on to the values that were givento him by his mother.His mother may have died but she ensured that her son never left the values she has given him.Nandini values her mother's contribution to her life and if she hasany complaints about her mother it is about the too little time she had with her mother.Both children carry with them the values given by their mother and that's where Anandi's success as a parent lies. The material wealth and the family she gave her children may have been made unavailable to her kids but the values she had given them are their constant companions.
At the end it is how people want to look at things from what was shown. Not about supporting characters and makers.
If one watched the show and the character Anandi for more than seven years they wouldn't have any doubts about Anandi whether she had done enough to find her daughter or not.
The characters are owned by the writers and it is their right to tell the story they wish to tell just like it is my right to watch the show or read the book or not to watch the show .I may not have liked the direction the story had taken but it is what they want to tell.