About Bhatta Narayana
Bhaṭṭa Nārāyaṇa Mṛgarājalakśman, also known as Nishānārāyana, belonged to the Pancharatra Rarhi branch of Sandilya family of Brahmins. He was a Sanskrit scholar and writer who lived before 800 A. D. for he is cited by Vāmana in about 800 A. D. and by Ānandavardhana who refers to him more than once.