What is its specific role in completing the Shraddh process in Gaya?

Akshayavat, the immortal Banyan tree here in Gaya, holds a vital place in concluding the Shraddh. After making offerings at Vishnupad and other vedis, the final rituals are often performed under Akshayavat. It is believed that offerings and vows made here yield inexhaustible (akshaya) merit. Traditionally, the pilgrims performing Shraddh in Gaya make final offerings here, pray for the eternal peace of their ancestors, and seek blessings from the tree itself, which is considered divine. It is also here, under the witness of Akshayavat, that the pilgrim typically honours their Gayawal Panda with dakshina and gifts (daan), signifying the successful completion of their sacred duty of Shraddh in Gaya