Sethu Parvathi Bayi was distantly related by birth to the royal house of Travancore in the direct female line.

Sethu Parvathi Bayi chose Sri Pooram Nal Ravi Varma Thampuran of the Kilimanoor Palace as her consort owing to his high educational achievements.

Sethu Parvathi Bayi was an accomplished veena (stringed instrument) player, and a famous promoter of Carnatic Music and other arts.

She played a major role in bringing to light the compositions of her ancestor Maharajah Swathi Thirunal Rama Varma of Travancore.

Srimathi Makayiram Nal Rajamma Amma Thampuratty's grand daughter, Lekha Varma, was also adopted into the Travancore Royal house in 1996.

[citation needed] Sethu Parvathy Bayi was also the younger grand daughter of the world-renowned artist Sri Raja Ravi Varma of the Kilimanoor Palace.

The Senior Queen decided to adopt the daughters of her nieces, Mahaprabha and Kochukunji of Mavelikara Utsavamadhom Palace, into the Travancore Royal Family.

In 1900, Maharani Lakshmi Bayi petitioned Maharajah Moolam Thirunal for the adoption of her grand nieces, to perpetuate the ruling line.

There were also objections from the First Prince Chathayam Thirunal Rama Varma, but these were overcome due to the insistence of the Senior Queen of Travancore.

In 1912, on her sixteenth birthday, she gave birth to her eldest son, the then Crown Prince, Sree Chithira Thirunal Balarama Varma, the last ruling Maharajah (King) of Travancore.

[12]According to Lakshmi Raghunandan's book on her grandmother Sethu Lakshmi Bayi, the birth of her eldest son, Sree Chithira Thirunal, changed Sethu Parvathi Bayi's position within the royal family as well as in Travancore as she became the Amma Maharani (Queen Mother) of Travancore at the age of fifteen.

There were also rumours of an assassination attempt on the young Maharajah Chithira Thirunal, allegedly at the behest of Rama Varma Valiya Koyi Thampuran, the consort of Sethu Lakshmi Bayi.