With reference to the Tughlaqs, consider the following statements:
1. Muhammad Bin Tughlaq increased the land revenue of the farmers of the Ganga-Yamuna Doab.
2. Firuz Shah Tughluq started the scheme of takkavi loans to promote agriculture.
3. Muhammad Bin Tughlaq established a new department called Diwan-i-Kohi for agricultural development.
4. Firuz Shah Tughluq was the first Sultan to impose irrigation tax.
Which of the statements given above is/are correct?
1
1, 3 and 4 only
2
2, 3 and 4 only
3
2 and 3 only
4
1 and 4 only