Kattabomman of Panchalamkurichi and the polegar wars in 18th century
South india. Need further details of the execution of Veera Pandiya
Kattabomman by the British.

There are several web pages writing "Veera Pandiya", but far more
writing  "Veerapandiya", e.g. ("200th Anniversary Death Veerapandiya
Kattabomman")
http://www.philately.com/philately/india_1999.htm

There are more websites with the spelling "Panchalankurichi" than
"Panchalamkurichi" (n instead of m).

Information concerning the execution is available on several web
pages.
However, I am not a Researcher, so I can only comment. 
Perhaps some other Researcher would like to answer your question -
depending on what you mean by "further" details.
The following information can be found:
1. how was he executed,
2. who ordered the execution,
3. who else was executed the same day,
4. name of the library where a manuscript by the British commander is
being kept.

Are these the further details you are looking for?