who is pia in this story

hi mm i m just confused who is the actor playing pia. in USA urvashi and brijesh haven't got married so who is this new pia is she positive or negative. and kaveri is acting really strange has she really become a good person out of no where😕confused😕

Pia is Nahar and Brijesh's lil sister.. and Kaveri gets fed up with being nice so
she turns evil again

You probably don't recognize her since they changed her character and she was only shown in the beginning of the serial.

Brijesh's got two younger sisters and one younger brother.

Brijesh is the eldest followed by Aditi and Nahar and finally Pia. Pia's character was initially played by Amrita who used to be a well known child actress (Shez acted in the movie Tum Bin, as Rakesh Bapat's younger sister. She is called Pia in the movie also)

Pia is the one who sees Saloni on TV (The contest when Neels in hospital).

Hope this helps...!