The characters are also leading to the same path:
Amrit-Ragini
Nimrit-Swara
Agam-Lakshya
Tej-Sanskar
Tej helped Nimrit to take revenge from Amrit although Agam also wanted to take revenge from Nimrit & he married Amrit for that but Lakshya is not that smart as Agam. But surely the bond b/w Swara & Sanskar is heading towards like that of Tej & Nimrit.
Amrit Manthan was clear about its theme which was sort of 'behen hi behen ki dushman' but Swaragini was always 'Jodey dilon k rishte'.
So for me its an old wine in a new bottle thats all.
Well, as far as AM is concerned it had a great suspense element. And Amrit was way too strong than Ragini.