This is the yesti stone from Darasuram Temple, a Chola temple near Tanjore, from which we have derived the current yesti for Nandi Mandapam.
This is the drawing on plywood which was done the last time Stapathi visited the worksite.
A full view of the yesti marked on tracing.
This is the front view of the yesti marked by Stapathi.
The one on the left is the view that will be seen from the front.
The two separate drawings on the right side is a split view of the front part and the back part. This was done to make it easy to carve, especially the temple which comes behind the elephant..
This is how the yesti stone will look finally part of Nandi Mandapam.