my prediction

I think rithik is rebirth of someone from his family who's portrait was torn , when d family was entering d haweli , villagers after seeing rithik say bilkul unke jaisa dikhta hai , in promo naagin burn rithik's portrait.
I think shivanya is rithik saviour from sesha , not confirm she is naagin or not but as per promo rithik kundali has dosh of kaal sarp so I think maybe shivanya is great devotee of lord shiv & has some magical powers.