"Pavitra Rishta" or "Siblings Rivalry"

My review on what I learnt from "Pavitra Rishta".
We all are pretty much aware of the weird concept that Ekta uses in most of her series where the dead comes alive, the main characters have polygamy. However, today I am here to focus on this new trend that Ekta has in this series "Pavitra Rishta".
And the trend is getting married to your siblings fiance.
Reasons :
1st generation:
- Barsha, Archana's sister, got married to Archana's Ex- fiance
- Manav married his brother, Sachin's fiance.
2nd generation:
- Poorvi (Archana's adopted Daughter) & Ovi ( Archana's own Daughter) got married to Arjun. Both of them have one daughter each from Arjun.
Pari ( Arjun & Poorvi's daughter)
Piya ( Arjun & Ovi's daughter).
3rd generation:
- Ankita, Soham's Daughter is now married to Naren/Aman who was once boy friend to Pari, Poorvi's daughter. Ankita & Pari are sister's.
Basically, What i am learning from Pavitra Rishta is " Save your Boyfriend from your sisters, who knows when your sister get married to your boyfriend. " Lol.

Sorry Ekta I do watch most of your Television Series But some of your concepts or trends are too odd. :P

Any comments or Suggestions are always Welcome. :D