Step 1: Understanding the question.
The question is asking about the location of the Hirakud project. The Hirakud project is a dam and irrigation project built on the Mahanadi River in Odisha.
Step 2: Analyzing the options.
(A) ओडिशा में: Correct — The Hirakud Dam is located in Odisha, on the Mahanadi River.
(B) बिहार में: The Hirakud project is not located in Bihar.
(C) झारखंड में: The project is not located in Jharkhand.
(D) छत्तीसगढ़ में: The project is not located in Chhattisgarh.
Step 3: Conclusion.
The correct answer is (A) ओडिशा में, as the Hirakud project is located in Odisha.