“Vengeance has a new name! The icchaadahari naagin Nayantara is set out to exact revenge from those who have wronged her. But little does she know that her fate is intertwined with Brinda, an innocent girl for whom family comes first! What happens when the blood thirsty naagin attacks Brinda’s loved ones? Can Brinda protect her family from the naagin’s wrath? Find out in Naagin - Bhagya ka zehreela khel.”
So what are we supposed to infer from this? To me looks like an all out war between Nayantara and Brinda.