Ponniyin Selvan Varalaatru Peravai

Hi all,

Its been a while since I posted my oh-so-popular dumb question. Here
it is:

I was reading an article on vel worship in Srilanka here:
http://kataragama.org/research/krishnapillai.htm

There is a passage on the page which goes like this:

Maviddapuram Kandaswamy Temple - Kankesanthurai (Kovit Kadavai)
The temple here was built by Marutha Piravikavalli, daughter of
Thissai Ukkira Cholan, king of the Chola regime in South India. She
had come on a pilgrimage to Naguleswaram to bath in the holy water of
Keerimalai to cure her congenital facial disfiguration. In her
journey she noticed an old man, Sadaiyanar venerating with daily
prayers a silver Vel planted in a cove of a tree. Her wish to house
this Vel was fulfilled by her father. Later the Vel gave place to
Kanthasamy.

Who was this Thissai Ukkira Cholan and who was Marutha Piravikavalli?

As dumb as always,
Thilak