Consider the following statements about medieval Indian rulers and contemporaneous events:

1. It was during the reign of Iltutmish that Chengiz Khan pursued the fugitive prince Jalaluddin Mangburni up to the Indus river.

2. It was during the reign of Muhammad bin Tughluq that Timur invaded Delhi.

3. It was during the reign of Deva Raya II of Vijayanagara that Vasco da Gama landed on the Kerala coast.

Which of the statements given above is/are correct?