Rivers are an important element of the physical landscape of India. Variations in the environmental factors have resulted in the evolution of diverse drainage systems. Which of the following statements is/are incorrect about the drainage system of India?
I. The Beas flows into Pakistan and joins Sutlej.
II. Sutlej and Indus are examples of antecedent drainage.
III. River Luni drains into Sambar Lake which is an example of inland drainage.
IV. The rivers flowing from the western slopes of Western Ghats are swift and have a short course