The Omkareshwar Project is associated with the Narmada River, hence option 2 is the correct answer. Here`s an explanation for each of the options:
Option 1: Chambal - This is not the correct answer. The Chambal River is known for the Gandhi Sagar Dam, not the Omkareshwar Project.
Option 2: Narmada - This is the correct answer. The Omkareshwar Project is a gravity dam on the Narmada River just downstream of Mandhata in Khandwa district, Madhya Pradesh, India.
Option 3: Tapi - This is not correct. The Tapi River has projects like Ukai dam or Kakrapar dam associated with it but not the Omkareshwar Project.
Option 4: Bhima - This, likewise, is inaccurate. The Bhima River has the Ujjani Dam (also known as Bhima dam), not the Omkareshwar Project.
It`s important to note that these rivers are associated with different projects and are parts of different river systems.