You are the master in this - always looking for interesting pieces of info. "Amarabujhangadeva":-))) - it might not have caught anybody else attention !!
Other that sethuraman no other serious study is available on ambalavan along this line.
Hmmm...veera naarayani - amarabujangadeva - uthama chozhar thiruvayiru vaiytha pirattiyar... You are in full swing :-))