A hitherto unknown complete copy of Śaṅkara's commentary on the Chāndogyopaniṣad, in Grantha script. This script widely used to write Sanskrit in the neighbouring state of Tamil Nadu, but not in Kerala, so this might be an indication on the provenance of the manuscript. The work is organised in eight sections (prapāṭhaka), divided as follows: 1 to 22r: 1st prapāṭhaka; 22r to 34r: 2nd prapāṭhaka; 34r to 49v: 3rd prapāṭhaka; 49v to 64r: 4th prapāṭhaka; 64r to 88v: 5th prapāṭhaka; 88v to 112v: 6th prapāṭhaka; 112v to 125v: 7th prapāṭhaka; 125v to 152: 8th prapāṭhaka.
Custodial history: Former ownership is not known.
Extent and format of original material: 153 leaves.
Physical characteristics: Size: W 4.5 L 34.5. 2 string holes; 2 wooden covers; 1 string (modern).
Owner(s) of original material: Brahmaswam Madham, Thrissur.
Author(s) of original material: Śaṅkara.
Scribe of original material: Unknown.
