Patna is the answer that matches the Bihar-specific fact asked in the question. Patna, the capital of Bihar, is often referred to as the 'Silicon Valley of Bihar' due to the emergence of technology startups, IT companies, and digital education hubs in the city. Patna has seen significant growth in the EdTech sector, with many coaching institutes and digital learning platforms establishing their presence. The city hosts numerous competitive exam coaching centers that cater to millions of aspirants across India. Muzaffarpur is a major commercial and industrial city in north Bihar, known for its litchi production, but it is not called the Silicon Valley of Bihar. Darbhanga is a cultural and educational hub in the Mithila region but does not carry this designation. Nalanda is famous for its ancient university and is an important historical and educational site, but it is not associated with modern technology. Patna's growing startup ecosystem, improved digital infrastructure, and tech talent pool have earned it this informal title in recent years. 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 Muzaffarpur, Darbhanga, Nalanda may be valid Bihar-related terms, but they do not satisfy the complete relationship asked here. Revise the complete pair ‘Which city is known as the 'Silicon Valley of Bihar'? — Patna’ rather than an isolated option letter.
