Progress Of Indic Languages Vs English - 2

[Bharatvarsh]

Any idea on who wrote this Tamizh poem and where:

"Our Eyebrows Are Lowered...
Our Eyes Closed...
Lips Parched...
Teeth Clenched...

We Walk With Our Backs Bent...
We Whom You Rule Over...

Lock Us Up...
We Whom You Rule Over...
Lock Us Up in Cages...

Flay Us With Staves...
Let The Skin On Our Backs Fester...

One Day Our Eyebrows Will Arch...!
Our Closed Eyes Open Again...!
Our Puckered Lips Will Throb...!
And Our Clenched Teeth Grind...!

Rule Over Us Until Then...!
Flaunt Your Power Over Us...! "

It was used in Kannathil Muthamittal but haven't been able to locate it or the author (is it Indira Parthasarathy?).