Lakshmi Bayi was born in 1848 as the daughter of Bharani Nal Amma Thampuran of Mavelikara.
In 1857 the then Rani of Travancore, HH Pooradam Thirunal Lakshmi Bayi, the niece of Maharajah Uthram Thirunal died soon after giving birth to a son, the later Maharajah Moolam Thirunal.