I didn't get this clear : The Takshashila attack was aimed at killing them. Okay, Anasuya survived but we don't know about Ambiraj. In the precap, Anasuya was crying, in a blue dress synonymous to Paurav Rashtra. So is she married now? Why will she join hands with Darayus whom she insulted and albeit mistrusted in the Darbar. I think its no where connected to the attack and is after a quick leap.
Anasuya might be saved and as her clothes are destroyed and she is in bhamni kingdom, she will wear blue.
She might want to know who did this so went with Darius
Just my guess
You have a point.Perhaps she will approach Darius in order to find out the real culprit.
I remember two parts of her promo.She explains the similarity and the difference between a businessman and a woman and Darius seems angry.I guess Darius expected to use her for his own profits but she didn't fall into his trap.