Which of these were holy Hindu scriptures written by gurus

Some of the holy Hindu scriptures written by gurus include:

1. The Vedas - considered the oldest Hindu scriptures and are attributed to the ancient sages or gurus known as the Rishis.
2. The Upanishads - philosophical texts that form the concluding part of the Vedic scriptures and were composed by various gurus.
3. The Bhagavad Gita - a part of the Indian epic Mahabharata, written by the sage Vyasa and spoken by Lord Krishna.
4. The Ramayana - an epic poem written by sage Valmiki, depicting the life and adventures of Lord Rama.
5. The Yoga Sutras of Patanjali - a collection of aphorisms on the philosophy and practice of yoga, written by the sage Patanjali.
6. The Aranyakas and Brahmanas - additional sections of the Vedic literature, composed by different gurus, providing ritualistic and ritualistic explanations.
7. The Puranas (e.g. Vishnu Purana, Shiva Purana, etc.) - a collection of ancient texts that contain myths, legends, genealogies, and philosophical teachings, composed by various gurus.
8. The Agamas and Tantras - scriptures specific to different sects of Hinduism, written by gurus associated with those traditions.

It is important to note that Hindu scriptures have been traditionally passed down orally from guru to disciple (Guru-Shishya Parampara), and some texts may have been codified or compiled by later scholars.