Which among the following was / were the main factors that went into the making of the administrative policy and organization of the Delhi Sultanate?
1. Model of the government of the Caliph and Persian Government
2. The already existing machinery of the government
3. Practices and customs of the race to which Sultan belonged to
Choose the correct option from the codes given below:

Answer: [D] 1, 2 & 3

All are correct statements

This question is a part of GKToday's Integrated IAS General Studies Module