I'm no expert but if i had to venture a guess I'd say the ratings for this show are low because the concept although contemporary - where a woman fights for her rights, dignity and happiness - the treatment is just unbearable.
The actors have done a wonderful job - that is unanimous.
However lets take a look at how the storyline has progressed:
Urmi and Samrat get married - Samrat is shown to be THE BIGGEST male chauvinist, misogynist, and just down right disgusting. His constant ego, walking all over Urmi - slapping her, beating her with a belt and not to mention constantly cheating on her with various call girls etc. He exercised every form of abuse possible - emotional, verbal and physical.
Yes these things happen in society, yes its great that a show put this on national platform. What's disgusting is how meek they portrayed Urmi and how long it took for her to find her voice and stand up and fight. Not to mention how Samrat kept getting away with being a disgusting specimen of humanity if he can even be categorized as one.
FINALLY Samrat and Urmi divorce and Urmi is able to get a fresh start in life - moves to a new city, starts working and is raising her son.
She's not really interested in this whole re-marriage saga but Ishaan her dear friend who's held a candle for her all those years, side note Ishaan was Samrat's BFF at one point - personally I didn't support the Ishaan-Urmi love story but that's a different discussion - wants to marry her.
Circumstances lead to Urmi and Ishaan getting married - but here too the makers had SO much potential at sending a really good progressive message to society and the stigma associated with divorced women and single mothers - but no they had to show Ishaans' mother just a better dressed version of Shashi with the same nasty kitchen politics to drive Ishaan and Urmi apart - why becoz Urmi is "used" or "damaged goods" and she comes with baggage - an 11 yr old son.
If that wasn't enough for ridiculous melodrama and killing a really good progressive, message oriented show - they show Samrat duping Ishaan's sister and marrying her so he can live off her money - complete character inconsistency coz Samrat was all about ego and treating women as second class citizens but now he's dependent on a woman for survival.
Not to mention Samrat is back to his antics of tormenting Urmi by making her believe that their son is ill and needs a sibling to survive. Aka a disgusting ploy to bed his ex wife.
So IMO this show had great potential - it could have been a show about how 2 people who have completely different views and expectations of marriage come together, face reality and see what they expected/imagined is not real life. At that point they find a way to either grow together and respect the differences or grow apart and go their separate ways and chart a path that defines happiness for them - despite conventional norms.
OR since the story is focused on women oppressed in marriage - they should have focused more on Urmi's journey - rather than Samrat's antics. Samrat being despicable was needed to set the tone of the story line - but his antics and atrocities were given TOO much screen time and continues to get more screen time than is needed to establish his character. I wanted to see how Urmi faces the challenges head on, how strangers become family and aid in tough times, how single mothers can provide for and raise a child well. If she wanted to get married and start a life again great if not that's great too. But CVs didn't take either path. In their efforts to give Samrat more importance the entire story was muddled and a good portion of the audience just got fed up and lost interest. Who likes to tune into a show after a long day and watch something that will make ur blood boil?
Hope that answers the question - I don't mean to offend anyone or their sentiments but I get so upset when a good story line is ruined and masses appreciate mediocrity - that lets makers off easy and doesn't give much chance to makers who have a real cohesive story to tell.