The correct option is C Punjab, Haryana and Rajasthan only
Bhakra Nangal is the largest and the most important multipurpose project named after the two dams built at Bhakra and Nangal on the Sutlej River. It is a joint venture of the Punjab, Haryana and Rajasthan states designed to harness the precious water of the Sutlej for the benefit of the concerned states.