Together with Khalil Sultan (a great-great-grandson of Timur), he plundered the baggage-train of the army and then made his way to Khurasan. Meanwhile, Ulugh Beg also invaded Khurasan in 1448 in an attempt to defeat Ala-ud-Daulah Mirza bin Baysonghor (علاء الدولہ میرزا بن بایسنغر‬), who held Herat. Ulugh Beg defeated Ala-ud-Daulah Mirza bin Baysonghor at Tarnab and took Mashhad, while his son Abdal-Latif Mirza conquered Herat.