Am a south indian and speak like 3 south languages, telugu, malayalam and tamil and muthu jod kavadi hada is in neither of these languages. Its Muthu Kodi kavaadi hada, its like kannada but again its some dialect. I dont know whether its goan and kannada and tulu mixed, or something since mehood is dressed like a fisherman or some person on goan coast. Its got to do with somehting about a kiss i think not sure,
what am sure of is that this song is not tamil