He is sent by the devas to Shukra's ashrama (spiritual hermitage) to learn about the Mṛtasañjīvanī vidyā mantra, the knowledge that allows one to restore life after death.
They murder him on two different occasions: They kill him when he is deep within the forest and feed him to the wolves, and pound his body to paste, mixing it with seawater.
In their third attempt, the asuras burn the body of Kacha, mix it with ashes and wine, offer it to Shukra to drink.
[3] His education complete, Kacha takes his leave from Devayani and her father, and starts to journey back to Devaloka.
Kacha reveals to her that Shukra had told him that since he had emerged from the acharya's belly, he is deemed to be his son, and that made Devayani his sister.