Muthai Tharu Patthi Thirunagai Lyrics Meaning | Arunagirinathar | TMS: Muthai Tharu Patthi Thirunagai is a famous Tamil devotional song about Lord Murugan written by 15th century Tamil saint Arunagirinathar. He was the author of book called ‘Thiruppugazh’ about lord Murugan. It is believed that Arunagirinathar had composed 16,000 songs but at present only 1,334