Like others have mentioned before on the forum, Pratha doesn't behave like other Naagins in previous seasons. Mainly they're all about revenge, fierceness and even indifference at times. As in their intekaam usually takes precedence over other things. But Pratha feels different to me.
Some might assume that she's being 'meek' or 'too soft' at times. But I feel that's just who she is. There's a softness to her character & lot of empathy.
Her worry for Mahek when Lalit got her. Her empathy for Ritesh's pain when he was drunk & heartbroken. Her understanding Reem's state of mind and saving her when Reem was trying to shoot herself. And now when her human friend Diya (the staff member) died in unexplained circumstances - Pratha was genuinely pained so much for a mere human when she herself is supposed to be some ageless eternal supreme being.
She could be this soft & kind Naagin because there's no personal revenge for her to take. Just a purpose to save people. Pratha is a reluctant savior here, as she was never going to become the Sheshnaagin. It was supposed to be Mahek's job, as disclosed today.
Of course she's always her fierce self when she faces Asurs - Lalit & Officer Riddhi. But other than that, till now she seems like a sweet & obedient younger sibling to me who has a lot of faith in her elder sister - who's probably going to betray Pratha at some time, which will be THE moment for Pratha to change perhaps.
(Tho tbh I don't really want her to stow away her kindness & empathy. She's not indifferent & that's good.)
Thoughts...?
P.S. Sorry, zyada lamba hogya thoda 😆