Option B — Maharashtra, Madhya Pradesh, Gujarat and Rajasthan
The Sardar Sarovar Dam is built over the Narmada River in Gujarat and covers four states: Maharashtra, Madhya Pradesh, Gujarat and Rajasthan.
Source: Water Resources, Chapter 3 (Sardar Sarovar Dam box)
The textbook explicitly names the four states benefitted by the Sardar Sarovar Project in the highlighted box. Students must remember this specific combination — Punjab and Haryana (Option A) are linked to the Bhakra-Nangal project, not Sardar Sarovar. Eliminate options with Telangana, Andhra Pradesh, Karnataka, or Chhattisgarh, as these are not mentioned in connection with this dam.