Which of the following statement(s) is/ are found to be incorrect? I. Jalal-ud-din Firoz khilji, the founder of the Khilji Dynasty, was brought to Delhi as a slave to Sultan Kaiqubad. II. Jalal-ud-din Firoz Khilji brought all the Rajput kingdoms under his sway and also snubbed the Chhajju Rebellion, inspired by Khishlu Khan. III. Firoz Khilji was the first ruler of Delhi sultanate to clearly put forward the view that the state should be based on the willing support of the governed.