The above link contains a precious compilation of Kanchi Mahaswamigal's words about Adi Shankara way back in the year 1933! It is Part 2 book containing 232 pages. You can click the link and download the pdf book. Please read at your leisure, while I enquire about the Part 1 from Shri Venkatesan Ramadurai. A million thanks to him for sharing this with me.