Srimati Sita Thakurani is to be worshiped just as much as Sacidevi herself,  as the mother of the universe. She is the eternal wife of Sri Advaita Acharya.  She was the daughter of Sri Nrishinga Baduri. She was married to Sri Advaita  Acharya in Phuliya Nagara.
After their wedding, Advaita Acharya went to Nadiya, to live in Shantipura. Sita  Thakurani was always
absorbed in vatsalya prema for Sri Gaurasundara Prabhu, and, out of parental  concern used to instruct
Jagannatha Mishra on how to care for the boy. Sri Krishna Dasa Kaviraja Goswami  has described the
birth celebration at the house of Jagannatha Mishra upon the advent of the Lord,  giving special attention to the position of Sri Sita Thakurani. Advaita  Acharya’s wife, worshipable by all the three worlds was Sita Thakurani. Taking  the Acharya’s orders on her head, she had come to take a look at this new child,  this jewel of jewels, and to offer him presents.
On the eve of his son’s advent Sri Jagannatha Mishra, seeing the imminent signs  of his child’s arrival, sent
word to Advaita Acharya in Shantipura that the long-awaited child was being  born. Hearing news of the
advent of this unprecedented child, Advaita Acharya floated in the waves of  ecstasy. With Sri Haridasa
Thakura, he went to bathe in the river, and, after much dancing and song, he  sent his wife to go quickly to Mayapura in Navadwipa.
According to Gaura-Ganodesha-Dipika, Sri Sita Thakurani is Yogamaya. The  Gaura-Parshada-Charitvali
says that in Krishna Lila, she was Purnamasi, the mother of Sandipani Muni,  grandmother of
Madhumangal and Nandimukhi and a disciple of Narada Muni. (Gaura-Ganodesha-Dipika,  however, says
that Paurnamasi in Krishna-lila became Sri Govinda Acharya in Chaitanya lila.)
In Dvapara-yuga, during the celebration of Krishna’s birth ceremony, she was  present in the house of
Nanda, and at that time gave Nanda and Yashoda many instructions on how to care  for the child. The
Caitanya-Caritamrita gives the following account of Sita Thakurani’s visit to  the house of Jagannatha
Mishra after the birth of the Lord:
“One day, shortly after Sri Caitanya Mahaprabhu was born, Advaita Acharya’s  wife, Sitadevi, who is
worshipable by the whole world, taking permission of her husband, went to see  that topmost child with all kinds of gifts and presents. She brought different  kinds of golden ornaments, including bangles for the hand, armlets, neclaces,  and anklets. There were also tiger nails set in gold, waist decorations of silk  and lace, ornaments for the hands and legs, nicely printed silken saris and a  child’s garment, also made of silk.
Many other riches, including gold and silver coinds, were also presented for the  child.
Riding in a palanquin covered with cloth and accompanied by maidservants, Sita  Thakurani came to the
house of Jagannatha Mishra, bringing with her many auspicious articles such as  fresh grass, paddy,
gorocana, turmeric, kunkuma, and sandalwood. All these presentations filled a  big basket. When Sita
Thakurani came to the house of Sacidevi, bringing with her many kinds of  eatables, dresses, and other
gifts, she was astonished to see the newly born child, for she appreciated that  except for a difference in color, the child was directly Krishna of Gokula  Himself.
Seeing the transcendental bodily effulgence of the child, each of His nicely  constructed limbs full of
auspicious signs and resembling a form of gold, Sita Thakurani was very much  pleased, and because of
her maternal affection, she felt as if her heart were melting. She blessed the  newly born child by placing
fresh grass and paddy on His head and saying, “May You be blessed with a long  duration of life.” But
being afraid of ghosts and witches, she gave the child the name Nimai. On the  day that the mother and son took bath and left the maternity room, Sita  Thakurani gave them all kinds of ornaments and garments, and then also honored  Jagannatha Mishra. Then Sita Thakurani, being honored by mother Sacidevi and  Jagannatha Mishra, was greatly happy within her mind, and thus she returned  home.”
From that day on, Sita Thakurani would often come to Mayapura from Shantipura,  in order to teach
Sacimata how to care for the new baby. She would give her many different  instructions on how to raise
children. And after helping with the child in this way, she would return to  Shantipura. When it came time for the child’s birthday ceremony, Jagannatha  Mishra and Sacidevi let the worshipable Sita Thakurani be
the first to offer the child his new clothes.
Advaita Acharya Prabhu also had a house in Navadwipa. There he would live from  time to time and
discuss Krishna-katha with the devotees headed by Srivasa, diving and surfacing  in the waves of joy until
the break of dawn. After Sri Gaurasundara’s appearance, all the devotees prayed  together with Sri Advaita
Acharya and Sita Thakurani that the child might live long in Mayapura and have  good fortune.
Sita Thakurani and Sacidevi were of one mind; the baby Nimai was their life and  soul. Every day Sita
Thakurani would go to the house of Sacidevi and help her with the care and  nurturing of the boy. In the
house of Jagannatha Mishra, the divine child increased the pleasure of the eyes  and minds of all the
devotees, just as the waxing moon gradually grows more brilliant with each  passing day.
After several years, when Jagannatha Mishra’s son Vishvarupa – Nimai’s older  brother – had grown up, he
suddenly took sannyasa. The grief and agony of Jagannatha Mishra and Sacidevi  upon their son’s leaving
was great. Gaurasundara was also dismayed and unhappy at his brother’s  separation. At that time Advaita
Acharya and Sita Thakurani consoled Jagannatha Mishra and Sita Thakurani, and  helped take care of
Nimai.
Srivasa Pandit’s wife Malini Devi also was always very affectionate towards the  child, nurturing him and
caring for him. She and Sacidevi were of one mind in doing this.
After exhibiting his childhood pastimes, Nimai gradually progressed into his  Kishora-lila, or pastimes of
youth. After some time, he went to Gaya and revealed his true form and real  purpose. Having returned
from Gaya he gathered all the devotees at the house of Srivasa Angan for the  purpose of beginning kirtan.
At that time, Advaita Acharya brought Sita Thakurani from Shantipura to Mayapura,  and, having arrived
there was the first to worship the lotus feet of Sri Caitanya.
Gradually Sri Gaurasundara began, in Navadwipa, to unfold his kirtan pastimes,  wishing to deliver the
fallen souls. As time went by he took sannyasa and turned his face towards  Vrindavana, and ran off, half
mad into the jungle in search for Sri Krishna. Upon hearing this, Sri Sita  Thakurani spent four days with
Sacidevi, who, plunged in the darkness of separation as if the sun had left the  sky forever, lay fallen on
the ground like one near death.
Sri Caitanya Mahaprabhu, being bound by the ropes of love, was unable to go to  Vrindavana, but was
drawn to return to Shantipura. When he arrived in Shantipura, Advaita Acharya  and Sita Thakurani felt as if their life has returned. After having fasted for  four days, Sri Gaurasundara accepted prasada cooked by
the hand of Sita Thakurani.
Previous to taking sannyasa also, Sri Caitanya Mahaprabhu along with Nityananda  Prabhu would, from
time to time go to the house of Advaita in Shantipura, where they would have a  festival and perform
Krishna-nama-lila-kirtan all day and all night. The beautiful nature of this  subject has been described by
Sri Parameshvari Dasa Thakura in his Sri Pada Kalpataru as follows:
One day the Lord laughed, having arrived in the temple of Sri Advaita and thus  the son of Saci took his
seat. Along with Nityananda, Advaita sat down, and the two of them began  playfully assessing the idea of
having a festival. Hearing all this, Sita Thakurani entered smiling. At that  time, in sweet words which made
the minds of those who heard them blissful, the son of Saci ruled that there  must be a great festival. He
said, “Listen Sita Thakurani: we shall extend invitations to all the different  Vaishnavas who live nearby.
Let whoever hears the sound of our song, resounding through the air, come and  join us. We shall invite
one and all.”
Saying this, Sri Gaurachandra gave orders to the devotees saying,
“You, invite the Vaishnavas.”
“You, ready the mridanga and karatalas.”
“You, prepare sandalwood and aguru for distribution.”
“Have everything ready at the ghat.”
“Carrying out these assignments expertly, and after garlanding the devotees with  flower garlands, the
devotees shall gather together in a circle for an uproarious kirtan.”
Hearing the words of Mahaprabhu, the devotees followed his orders with great  affection, collecting
garlands, sandalwood, betel, ghee, honey, and milk, and everything else  essential for worhsiping the Lord.
The different gifts and fragrant articles for the devotees and the Lord were  then distributed in the proper
ways. The kirtan began at midday. At that time everyone chanted “Hari! Hari!”  and the mridanga made
the whole kirtan auspicious. Thus swims Parameshavara Dasa in the rasik pastimes  of the Lord.
After Sri Caitanya Mahaprabhu took sannyasa and went to live in Jagannatha Puri,  Sri Advaita Acharya
and Sita Thakurani used to go and visit him each year, bringing their son  Achyutananda with them. On
one such occasion, Sita Thakurani prepared some of the Lord’s favorite  preparations for him and invited
Him to their home to take lunch. Simply to increase their ecstasy, the Lord, who  was always absorbed in
Krishna Nama, honored their invitation and took lunch in the home of Advaita and  Sita.
Sita Thakurani, being always overwhelmed with vatsalya-prema treated him as  affectionately as if he were her own son. The Lord himself also treated her with  the same kind of regard and affection that he had for Sacidevi herself. Sri Sita  Thakurani bore three sons, Achyutananda, Krishna Mishra and Gopala Mishra,
who were followers of Sri Caitanya Mahaprabhu.
According to Bhakti-Ratnakara, Sri Sita Thakurani’s father was Sri Nrishimha  Baduri. Sita Thakurani also
had a sister, Sri. According to the Gaura-Ganoddesha-Dipika, Sita Thakurani, the  wife of Sri Advaita
Acharya, is Yogamaya, and her sister Sri is the prakasha, or manifestation, of  Yogamaya. (yogamaya
bhagavati, grihini tasya sampratam, sita rupenavatirna, “Sri” namni tat  prakashatah)
Note: Special thanks to Jaya Tirtha Caran prabhu from NZ for allowing us to use some of the content from his site to compile these pages.