kaash mai teri beti... and agle janam mohe bitiya...

Has anyone else noticed the similarity between the shows Kaash mai tei beti na hoti and Agle janam mohe bitiya hi kijo? Even the titles resemble each other. We have
Lali / Khushi ... eldest daughter sold off to get financial relief for the parents and younger siblings
Loha Singh/ Shahji... the all-powerful patriarch who wants a grandson at any cost
Shekhar/Junaid... the man with a conscience who feels for the bought girl
Siddheswari/Shanze... the unfeeling and materialistic first wife who has no qualms about the arrangement
Thakurain/Shagufta begum... the submissive and soft-hearted wife who cannot stand up to the overbearing patriarch
Ganesiya/ Pappu... the man that Lali/Khushi has been waiting for and thinks Shekhar/ Junaid is the same as
SO who copied whom? Or did both copy from a common third source