 Saibai was a member of the prominent Nimbalkar family, whose members were the rulers of Phaltan from the era of the Pawar dynasty and served the Deccan sultanates and the Mughal Empire.She was a daughter of the fifteenth Raja of Phaltan, Mudhojirao Naik Nimbalkar and a sister of sixteenth Raja, Bajaji Rao Naik Nimbalkar.Saibai's mother Reubai was from the Shirke family.