Arrange the following in their chronological order 1. Rukn-ud-din 2. Mubarak Khan 3. Firuz Shah Tughluq 4. Alam Shah Sel
Let us make a timeline in your mind. In Tughluq Dynasty, the right order is 1, 2, 3, 4. That is all this question asks. Remember the first and last events, and the rest becomes easy. A small timeline is enough to solve it.
Ref: [UPPCS (Mains) 2003] | Satish Chandra, Medieval India, and NCERT History textbooks discuss Tughluq Dynasty and explain the political, administrative and cultural developments that support the correct answer for this question.