Consider the following statements : 1. In the revenue administration of Delhi Sultanate, the in-charge of revenue collection was known as 'Amil'. 2. The Iqta system of Sultans of Delhi was an ancient indigenous institution. 3. The office of 'Mir Bakshi' came into existence during the reign of Khalji Sultans of Delhi. Which of the statements given above is/are correct?

1. Statement 1 is correct. In the revenue administration of the Delhi Sultanate, the official responsible for assessing and collecting revenue in a district (Shiq) was known as the 'Amil' or Amalguzar. 2. Statement 2 is incorrect. The Iqta system, a practice of assigning land revenue rights to officials in lieu of salary, was introduced to India by the Sultans of Delhi (formalized by Iltutmish). It was not an ancient indigenous institution but had origins in Islamic administrative practices outside India. 3. Statement 3 is incorrect. The office of 'Mir Bakshi', the head of the military department and nobility, was a key feature of the *Mughal* administration, established much later. While the Khalji Sultans had a military department (Diwan-i-Arz headed by Ariz-i-Mamalik), the specific office and title of 'Mir Bakshi' did not exist during their reign. 4. Therefore, only statement 1 is correct.