Daughter of former actor Sumeet Saigal and actress Shaheen Banu.
Ajay Devgan signed her for Shivaay but when the film temporarily got shelved she made her debut in Teulgu film Akhil 2015 and following year in 2016 she made her debut in Hindi film Shivaay.
Grand Niece of Saira Banu and Dilip Kumar, granddaughter of Saira Banu's brother.
Sayesha's maternal grandmother Rahat, was once married to director Mehboob Khan's son Ayub. From this marriage Ayub and Rahat has two boys, Afzal Khan and Aslam Khan. Later Ayub and Rahat divorced Rahat would later remarry Sultan Ahmed (Saira Banu's brother). From this marriage Rahat and Sultan had a daughter named Shaheen. Shaheen would later star in Maha Sangram. Shaheen is also the mother of Sayesha.
Grandniece of producer, directors Ramesh Saigal and Naresh Saigal.