A Prakarana Grantha is a treatise or text which highlights and explains terms and models (prakriyas) or particular aspects of the Upanisads, the Bhagavad Gita and the Brahma Sutras.
Naishkarmya Siddhi is a Prakarana text by Sureshvaracharya on the action-free self.
Pujya Swamiji unfolds Naishkarmya Siddhi thoroughly in 68 classes which were taught during the 1st residential long-term course at AVG Anaikatti, Coimbatore, in 1993-94.