Meaning - Mūla Kāraṇa jnāna pūraṇa

[Dr Priyashri Rao]

Namaskaram-s,

Could someone help with the meaning (word to word preferably) of the sāhitya of the following śabdam please? It is a composition of Veeramani Iyer (perhaps of Jaffna, am not sure though). There is a youtube video of this composition as performed in an araṅgetram at - https://www.youtube.com/watch?v=ODzOpNEZ8AA

Mūlakāraṇa jñāna pūraṇa mōna vāhana mūshika vāhana
bāla candra bānu gajastuti pādamē tuṇai vignarājanē

dēvar paḍum iḍar kūvi murai yiḍa deva dēvi vināyaka
kōbam koṇḍunī gajamukan yenum koḍia asurarai vadaittava

Kōla kura valli murugan maṇandiḍa muraiyai udaviya gaṇanādā
ēka nāyaka hērambaney civa jñāna gaṇapatiyē tuṇai

Avvai agavalai pāḍi unai toẕa divya guṇālanē tudikkaiyāl tūkki
sevvaiyam mukti sertanai undan tiruvaḍi vaẕvil tañjamē

[Lakshman]

The song by Viramani Iyer, starting with similar words, is different. Here are the lyrics.

mUla kAraNA. rAgA: rEvati. ADi tALA. N.Viramani Iyer.

P: mUla kAraNA mUSika vAhanA kAlakAlanE gaNapatiyE aruL
A: nIlamEghanE nittiya opUraNA shIlamE aruLvAi siddhi vinAyakanE
C: tOghai mayilgaLADum deiva muri kaNDiyil vAgai marattaDiyil vAraNA vITrirundu
Ezhai enakkaruLvAi engum niraindavanE pEzhai vayiTruDaiya piLLaiyArE vEda