Thirukkolakkudi is a remote village situated near Pulankurichi in the Sivaganga District of Tamilnadu. The hill at this place has a cave temple in the form of a mandapa shrine with a facade in the front, excavated probably during the early part of the eighth century A.D. An explorative study undertaken at this temple by the scholars of Dr.M. Rajamanikkanar Centre for Historical Research yielded several uncopied inscriptions. One among them was found engraved at the bottom portion of the southern rock wall of the facade which is hidden under a stone platform formed by the later renovators.

The inscription written in Tamil in three lines may be dated to the tenth century A.D. on palaeographical grounds. It reads as follows:

svastisri tirukkolakkudi
munbil uruni muventan e
nnum pasasin per

ஸ்வஸ்திஸ்ரீ திருக்கோளக்குடி
முன்பில் ஊருணி மூவேந்தன் எ
ன்னும் பசாசின் பேர்

It is understood from the inscription that the tank that surrounds the hill on its south was named after a ghost called as Muvendan by the local folks. Naming places after the members of the royal family or the sacred and pious people is commonly noted in the inscriptions. But naming a tank that served as the only source of drinking water to the entire village after a spirit is special and significant and not recorded so far.

The word, 'Pasasu' is not mentioned in any of the inscriptions copied from Tamilnadu till date. This made the authors to refer to the literature. Anangu, pey and bhudam are the only three super natural beings that are referred to in the early literature. Only one poem from Kalitokai, a fifth century collection, mentions the name Pisasu.

Though lexicons published by the University of Madras and the Tamil Sangam of Madurai mention both pasasu and pisasu as synonyms of pey, none of the Bakthi literature mention either pasasu or pisasu. Instead, 'pey' is mentioned very frequently as one of the participants of the group dance performed by lord siva at the graveyard. The lexicon published by the University of Madras places pisasu in an esteemed position and mentions that pisasu is included in the group of eighteen Ganas.

This may be the reason of annexing the word, 'pasasu' with Muvendan, who probably was a pholanthropic individual and served the village during his life time. It is strange to note that a water source of a village was named after a disembodied soul, which was fondly remembered by the people of Thirukkolakkudi even after the demise of the individual. The discovery of this inscription throws light on the beliefs and customs that prevailed in this part of Tamilnadu during the tenth century A.D.this is txt file