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