Shraddha Prayoga in the Sri Vaishnava tradition is the set of rites and prayers performed to honor deceased ancestors (pitrs), expressing gratitude and securing their peace. It combines Vedic mantras, Pancharatra and Sri Vaishnava-specific practices emphasizing bhakti to Sri, the divine couple (Narayana and Lakshmi), and the role of acharyas (especially the lineage of Ramanuja).
Sutra Differences: Ensure the text matches your specific Sutra (usually Apastamba or Bodhayana for most Sri Vaishnavas).
Purpose: It repays the "debt to ancestors" (pitru-runa), helping the deceased progress to higher realms of existence and eventually reach the lotus feet of the Lord.
While the specific mantras may vary based on your Sutra (e.g., Apastamba or Bodhayana), the general flow of a Sri Vaishnava Shraddha includes: