Madhubani is the answer that matches the Bihar-specific fact asked in the question. Madhubani paintings, also known as Mithila paintings, originate from the Madhubani district of Bihar. This ancient folk art tradition is practiced predominantly by women of the Mithila region and uses natural dyes and pigments. The paintings are characterized by geometric patterns, depictions of Hindu deities, nature motifs, and scenes from epics and folklore. Madhubani painting received the Geographical Indication (GI) tag from the Government of India. Sitamarhi district is known for being associated with the birthplace of Goddess Sita but is not the primary center of Madhubani paintings. Darbhanga is the cultural capital of the Mithila region and is important in many ways but is not specifically named for this painting style. Muzaffarpur is famous for litchi production and is a major commercial center. Madhubani paintings are sold across the world and are a significant source of income for artisans in the district. Bihar GK questions frequently place neighbouring districts, rivers, historical centres, personalities or government institutions together as distractors, so recognition of a familiar name alone is insufficient. The alternatives Sitamarhi, Darbhanga, Muzaffarpur may be valid Bihar-related terms, but they do not satisfy the complete relationship asked here. Revise the complete pair ‘Which district.