Hydrology and Tributaries of the Indus River System

According to standard hydrological tracking and official maps, the Jhelum and Ravi merge into the Chenab, and the Chenab subsequently discharges its combined flow into the Sutlej near Uch Sharif to form the Panjnad. The Sutlej then flows forward as the singular collective channel to join the Indus directly below Mithankot. (Note: Some alternative geographical interpretations debate the exact naming of the combined Panjnad channel, but the official answer key marks Sutlej). > The Sutlej acts as the final terminal receiving channel for the Panjnad tributaries before directly entering the mainstream Indus River. Answer: (d).