Dr Chaturbhuj Sahay (Hindi: चतुर्भुज सहाय ); known as Guru Maharaj, 3 November 1883 – 24 September 1957, was an Indian mystic and capable master (समर्थ गुरु).

From a young age he used to meet Saints and Yogiraj or learned ascetics (Sanyasi), and was influenced by several religious traditions.

He started spiritual organization Ramashram Satsang, Mathura in the name of his Guru Mahatma Ram Chandra (Lalaji), where the method of transfer of Soul Power has evolved to such an extent that the soul power is transferred not only on one to one basis but from one to many, which has now acquired India wide influence in the spread of spirituality and is spreading to other countries.

The system of meditation he preached is a synthesis between Karma (action), Upasana (devotion) and Gyaan (knowledge), 'Love' is mingled in all its methods, central focus is on the Spiritual Master, who by Soul-Power uplifts the aspirants and makes them experience the higher stages of spirituality.

Out of them most were materialistic and hypocrites, but even then, at times, good Saints and Yogi or learned ascetics (practitioners of Sannyasa) too came there.

He learned from them many types of Pranayama, many methods of Rajyoga and Hatha yoga, and to some extent he also practiced them, but he could not be satisfied by these people.

Its members were straight forward, honest, and simple, and followed Karmakand (Karmakanda (Sanskrit) is that part of the Śruti or Vedas writings which relates to ceremonial acts and sacrificial rites).

In that connection he first met with Mahatma Ramchandra Ji, his "Shri Gurudeva", in the capacity of a medical practitioner.

Mahatma Ramchandra Ji had put a garb of service and householder around him and his real form was not visible.

His neighbors, relatives, and friends those who sat near him day and night, all of them only knew him as a good person and that is all.