The correct option is 2 and 3 only because both the Indravati and Pranahita rivers are recognized tributaries of the Godavari River, which is one of the major rivers in Peninsular India. The Indravati flows into the Godavari in the state of Chhattisgarh, while the Pranahita, originating from the Western Ghats, merges with the Godavari in Maharashtra. In contrast, the Vamsadhara and Pennar rivers do not join the Godavari, highlighting the importance of understanding river systems and their tributaries for geographical understanding in the UPSC context.