During his short reign, he lost southeastern Afghanistan to Ala al-Din Husayn, Malik of Ghurid empire.
Although his father tried to recapture the lost lands in India, he was stopped by Vigraharaja IV, an Indian king from Chahamanas dynasty.
Nothing but few poems written by Hassan Ghaznavi remains about life of young Khusrau during reign of his father.
Although Minhaj-i-Siraj stated that Ala al-Din Husayn already had captured the Ghaznavid possessions in southeastern Afghanistan, including Zamindawar, according to Bosworth it could be "an anticipation of what actually happened".
[9] Few remaining Khusrau Shah coins stated Ahmad Sanjar as suzerain, although he died in 1157.