(C) I-2, II-1, III-4, IV-3
Mahanadi → Hirakud Dam; Narmada → Sardar Sarovar Dam; Chambal → Rana Pratap Sagar Dam; Chenab → Salal Dam.
Source: Water Resources, Chapter 3
The textbook explicitly mentions Hirakud Dam on Mahanadi and Sardar Sarovar Dam on Narmada. Rana Pratap Sagar is a well-known dam on the Chambal River (Rajasthan), and Salal Dam is built on the Chenab River (J&K). Remember these river-dam pairs as they are frequently asked in board exams.