Why did Savitri asked Yama for favors for her father-in-law and her father?

Savitri asked Yama for favors for her father-in-law and her father as a demonstration of her deep familial loyalty and love. By seeking to extend their lives, she aimed to showcase her devotion not only to her husband, Satyavan, but also to the broader concept of family responsibility. Her actions highlight the themes of sacrifice and the importance of relationships in the face of death. Ultimately, this plea was part of her clever strategy to negotiate Satyavan's life back from Yama.