Dattatreya (दत्तात्रेय)

Radhanath Swami is an American Hindu Gaudiya Vaishnava guru, community-builder, activist, and author.

Kalki Bhagawan is a spiritual figure in Southern India, known primarily for founding the Oneness Movement (also called the Oneness University, now Ekam) along with his wife Amma (Padmavati).

Dadu Dayal was a famous poet-saint and spiritual reformer of North India, especially Rajasthan, who founded the Dadu Panth. He is known for his emphasis on formless devotion (nirguna bhakti), criticism of ritualism and casteism, and advocacy of inner spiritual practice.

Muni Shri Sudhasagar Maharaj is a Digambara Sadhu and now the chief Guru of Jainism. He was a part of the Jain order of Saint Shiromani 108 Acharya Shri Vidyasagar Ji Maharaj.

Dronacharya, also known as Guru Drona, is one of the main characters of the Indian mythological epic Mahabharata.

Shri Kumbhandasji was a Kshatriya and his father was a man of an ordinary class and used to live by farming. Lack of money always troubled him in his life but he did not spread his hand in front of anyone. His only quality was devotion to the Bhagwan. The family of Kumbh Das was very big and he used to nurture his family only by farming.

Bhakti Tirtha Swami was a famous ISKCON Spiritual Guru and an accomplished public speaker, beloved guide and author.