The great Deity Maheshvara of Mantraform held it in his throat and it is said that from the very day he was called Nilkantha (bluethroated).
दधार भगवान्कण्ठे मन्त्रमूर्तिर्महेश्वरः। तदा प्रभृति देवस्तु नीलकण्ठ इति श्रुतिः॥