pidi sEr kaLiRaLiththa pErALA! unthan
adi sErndhu aruL peRRAL anRE - podi sEr
anaRku angkai ERRAn avirsadai mEl pAyndha
punaRgangkai ennum pErppon

Meaning:

pErALA 				- O! Lord
aLiththa 			- who protected
kaLiRu 				- Gajendra
pidi sEr 			- who was roaming along with his female elephant.
punal 				- The water (river)
gangkai ennum pEr 		- having the name Ganga,
pon 				- which is like gold
pAyndha 			- that fell
avir sadai mEl 			- on the shining locks of hair
anaRku am kai ERRAn 		- of Rudra who carries fire in his beautiful hand
podi sEr 			- and who wears ashes,
aruL peRRAL anRE 		- attained Your divine grace
undhan adi sErndhu 		- by reaching Your divine feet.

Vyakhyana Saram:
Azhvar is asked - You said that He determines good and bad deeds; but don't we see in this world other things such as the river Ganga that purifies us? Azhvar replies - Their ability to purify us occured only due to their relationship to His divine feet. This pasuram is an explanation for the phrase "aRam pAvam enRu iraNdum AvAn" from the previous pasuram.