if swara suspects her...he might not...for swara's sake. see he is not sure about maasi right now, because he doubts kavita, but even then he keeps an eye out on maasi because swara doubts her. even today, i think he rolled his eyes not at the accusation itself, but at how swara made it. when he accused kavita, he had something specific to her, the flowers to go with. swara had nothing and accused maasi in front of her big supporter dadi with zero proof. based on long baal..
I mean sanskar might not openly support ragini But might still feel she is inoccent and they might join hands to expose kavita in secret !