Ganga Mata Goswamini was initiated in the line of Gauranga's shakti, Srila Gadadhara Pandit Goswami, by Hari Das Pandit Goswami. Krishnadas Kaviraj Goswami himself has described this Hari Das’s character in his Chaitanya Charitamrita:
The chief servitor of the Govinda temple was Sri Hari Das Pandit. His qualities and fame are known all over the world; he was gentle, tolerant, peaceful, magnanimous, grave, sweet in his words, and very sober in his endeavors. He was respectful to everyone and worked for the benefit of all. Diplomacy, envy and jealousy were unknown to his heart.The fifty general qualities of Lord Krishna were all present in his body... Ananta Acharya, a disciple of Gadadhara Pandit, was always absorbed in love of Godhead, magnanimous and advanced in all respects. He was a reservoir of all good qualities. No one can estimate how great he was. Pandit Hari Das was his beloved disciple.
(Chaitanya Charitamrita 1.8.54-7, 59-60)
Srila Bhaktisiddhanta Saraswati Goswami Thakur writes in his Anubhashya: “During the advent of Lord Sri Krishna, Ananta Acharya was Sudevi, one of the eight gopis. This is stated in the Gaura-ganoddesha-dipika, verse 165, as follows: ‘Ananta Acharya Goswami was formerly Sudevi-gopi in Vraja [Vrindavan].’ According to the disciplic succession descending from him at the famous Ganga-mata monastery, he is known as Vinoda manjari. One of his disciples was Hari Das Pandit Goswami, who is also known as Sri Raghu Gopal and as Sri Rasa manjari. He had two important disciples: Lakshmipriya and her niece, Ganga-mata, daughter of the Raja of Puntiya.”
More is learned about Ganga-mata's holy life from Hari Das Das's Gaudiya Vaishnava Abhidhana and, in more detail, from Sundarananda Vidyavinoda's Shrikshetra, where an elaborate account is given.
Upon her arrival in Vrindavan Dhama, she met Hari Das Pandit Goswami and felt as though making contact with him had made her entire pilgrimage worthwhile. She became anxious to take initiation from him, but he hesitated at first because of her wealthy family background. Later, however, when he saw her asceticism and her unswerving determination to engage in pure devotional activity, he gave her initiation in the eighteen-syllabled mantra. This event took place in the Govindaji temple on the Chaitra Shukla Ekadashi.
After having received these blessings from her guru, she began to engage in intense bhajana, subsisting through madhukari, i.e., by begging from door to door for morsels of bread. After a year of this intense devotional activity, she was told by her spiritual master to live in Radha Kund with her spiritually advanced aunt and god-sister, Lakshmipriya, who regularly chanted three lakhs of Names every day. As a part of their regular spiritual practice, the two of them daily circumambulated Govardhana.
After several years of such practice at Radha Kund, when Sachi had become very advanced in her devotional life, her guru sent her to Purushottam Kshetra to recover the home of Sarvabhauma Bhattacharya, which had fallen into disrepair. Taking the command of her spiritual master as her all in all, Sachi Devi came to Jagannath Puri and took the kshetra-sannyasa vow. At that time, all that remained of Sarvabhauma's house was a single run-down building which housed his Damodar Shalagrama-shila.
Even while she had lived at home in Puntiya, Sachi Devi had studied the scriptures. In Vrindavan, furthermore, she had thoroughly studied the Bhagavata Purana. In order to salvage Sarvabhauma's residence, she set out to preach. Her explanations of the Bhagavat and her transcendental qualities made such an impression on the public that her discourses soon attracted large audiences. It did not take long before her fame had spread so widely that the king of Orissa himself, Mukunda Deva, came to listen to her Bhagavat lectures. He too became a devoted follower after being impressed by her learning and her devotional qualities.
One night, the king of Orissa, Mukunda Deva, had a dream in which Jagannath Deva appeared to him and told him to give Sachi Devi a tract of land which bordered this Shveta-ganga. The next morning, the King joyfully came to see Sachi Devi and told her about the dream. Though she had no interest in increasing her worldly possessions, Sachi Devi decided to accept the King's gift for the sake of her guru-given mission to improve the condition of Sarvabhauma's house. Prior to that she had had to beg for the wherewithal to serve the deities. Wherever there is true devotion to the Lord, the trouble which one has to take to serve him is not seen as trouble, but rather as an opportunity and a source of joy.
Even though she did not really want to go, Jagannath Deva himself made arrangements for her to bathe in the Ganges. That night he appeared to her in a dream and told her to take bath in the Shvetaganga in the middle of the night. Sachi Devi followed his instructions, but as soon as she entered the water, she had a vision of Ganga Devi herself. She was carried away in a strong river current which came from nowhere and suddenly found herself inside the Jagannath temple. But she continued to see herself bathing in the midst of her friends from Puri. She not only saw the Ganges and all those who were immersed in its waters, but she could hear the joyful noise of the bathing crowds.
And she was not the only one. The temple gatekeepers awakened on hearing this hubbub and called Lord Jagannath's pujaris. They in turn gave a report to the King himself who ordered them to open the temple doors. When they finally flung the doors open, they saw no one but Sachi Devi standing there alone. Jagannath's pujaris were confused and at first did not know what to do. They assumed that Sachi Devi had broken into the temple with the intention of robbing the Deities' valuables and that they had caught her red-handed. But by their suspicions they committed an offense to a great devotee. As a result, they were attacked by various diseases and distresses--so much so that the service to Jagannath was affected.
Jagannath Deva finally appeared to the King again and told him what had really happened. Being influenced by Sachi Devi's pure devotional attitude, Jagannath himself had made the Ganges flow from his feet to bathe Sachi Devi directly in the currents of his caranamrita. The King and the other servants of the Lord could only be freed from their offenses if they apologized to Sachi Devi and took initiation from her.
King Mukunda Deva went to Sachi Devi with his entourage, the temple guards and servants. They paid her their prostrated obeisances and begged for her forgiveness. Though the King and all the pujaris, etc., asked her for initiation, she only gave the mantra to the King in obedience to Jagannath's order. The King wanted to give a large amount of land as guru-dakshina, but Sachi Devi refused it. When the King continued to beg for an opportunity to render service, she finally said that every midday he could send two containers of mahaprasadi rice and one of vegetables, a cloth and 160 paisa for the service of the Vaishnavas. From that day onward, Sachi was known as Ganga-mata and Sarvabhauma Bhattacharya's house as Ganga-mata Math and to this day, after the midday offering at the Jagannath temple, these same items are sent to the Ganga-mata Math.
Another of those who were blessed by initiation from Ganga Mata Goswamini was a certain Smarta Brahmin named Mahiratha Sharma from Dhanaïjayapura.
At present there are five pairs of deities in the Ganga-mata Math: Sri Sri Radha Rasika Raya, Sri Sri Radha Shyamasundar, Sri Sri Radha Madanamohana, Sri Sri Radhavinoda and Sri Sri Radharamana. Other than these, the Damodar Shalagrama-shila of Sarvabhauma Bhattacharya, a dancing figures of Gauranga and a Gopal deity are also present on the altar there.
According to the information given by the Math, Gangamata was born on the Shukla-dashami of Jyestha in AD 1601 and entered the eternal pastimes in AD 1721. Branches of her Math are found in Jagannath Puri at the Haveli Math and Gopal Math, as well as the Gopal Math in Cuttack district's Tangi village.
Devotees of Krishna may be born in any race, in any caste, or indeed in either sex. They are still to be considered the best of human beings and worshipable by all. There are many examples of women who attained the supreme achievement of pure devotional service to the Lord, such as the wives of the Vedic Brahmins who due to the demands of bhakti ignored the orders of their less-advanced husbands to serve Krishna. In the Kaliyuga, also, as a result of the blessings of Hari Das Thakur, a prostitute was transformed into a renowned Vaishnavi and many great devotees went to seek audiences from her in order to receive her saintly association.
[Excerpted from "Sri Chaitanya: His Life & Associates" by Srila Bhakti Ballabh Tirtha Maharaj]