Which sultan of Delhi made a rule that, in any given year, the land revenue can be increased only

Q. Which sultan of Delhi made a rule that, in any given year, the land revenue can be increased only nominally, viz. one-tenth or one-eleventh of the fixed revenue?

(a) Balban

(b) Alauddin Khilji

(c) Ghiyasuddin Tughlaq

(d) Firozshah Tughlaq

Ans: (c) Ghiyasuddin Tughlaq