According to me, the main reason for low TRP of the show is the mindset of the Indian Television TRP Viewers that reflects in their choice and preference of shows...
The majority of the Indian TRP viewers who are in their late 40s or 50s, prefer watching Saas-bahu sagas...that's why all K serials once rocked...but now shows like Diya aur baati, Ye rishta kehlata hain., Saathiya..etc are all based on similar subject but the CVs have garnished differently...(I mean less number of divorces, separations, remarriages ..etc etc compared to K soaps). People love watching family politics, a dominating MIL and a docile DIL...and where their husbands are merely used as props...those viewers don't want to watch something fresh and don't want to accept the role/ character of a liberal and independent women, representing our society...
Secondly, the entire system of TRP mechanism is very absurd as it doesn't consider the online viewers, whereas as the similar majority of viewers watch shows online...like I am a working professional and don't have time to watch TV at home specially in the week days after office hours..so I prefer to watch shows online...but this kind of viewership is not accountable for TRPs...so what's the use to discuss about the same...
Sanaya's previous show was one of the most popular and most watched show...it too never got TRPs as good as Balika Vadhu...as the reasons I mentioned above - taste of majority of TRP viewers and TRP mechanism itself...whereas in IF it was consistently No#1 for a year...
Now, lets see the ranking in IF of CC and its competitors:
Chhanchhan - 3
Diya Aur Baati - 11
Pavitra Rishta - 12
Chidiya Ghar - 52
In IF, the majority of non-TRP members are here and we spend our quality time in different forums..that's why CC is on 3rd Position...whereas the majority of TRP viewers are not in IF and they watch shows on its original slot, which is accountable for TRPs...Therefore, as long as the TRP mechanism itself changes its metrics, the low TRP is not a surprise to me!