In my opinion, someone who's a deciding person at Star Pravah channel must have had a bad marriage experience.
Hence, between Aai Kuthe Kay Karte and Rang Mazha Vegala serials (these are the only two I watch), there is one common factor... the main daughter in law has separated from her husband but is "two goodie shoes' and still goes back again and again to her in-laws place for many reasons, this daughter in law is the best. There is second daughter in law that lives with the family (Sanjana in "Aai" serial and Shwetha or Esha in "Ranga" serial) is a vamp and insults everyone around her.
Same modus operandi but different serials..... per day sarva cast cha chalu hai. :-)
143