In plain words
The poet, to the Lord of Tirumāliruñcōlai: I have hemmed you in, and now I will not let you go. If you hide yourself by your conjuring powers, I lay on you the oath of your Lady, mark this: you are true to no one. O my father of Tirumāliruñcōlai, with its sacred waters that the people of the land, of the town and of everywhere, crowding close and eager to be rid of their evil deeds, walk around clamouring.