Name the organization that made the Golden

🟢 Explanation

The Golden Quadrilateral Project was one of India’s largest highway development projects aimed at connecting four major metropolitan cities — Delhi, Mumbai, Chennai, and Kolkata.

The project was implemented by the National Highways Authority of India (NHAI), which is responsible for the development, maintenance, and management of national highways in India.

The project significantly improved road connectivity, reduced travel time, boosted trade, and supported economic growth across the country.

🟢 व्याख्या

स्वर्णिम चतुर्भुज परियोजना (Golden Quadrilateral Project) भारत की सबसे बड़ी राजमार्ग परियोजनाओं में से एक थी, जिसका उद्देश्य देश के चार प्रमुख महानगरों — दिल्ली, मुंबई, चेन्नई और कोलकाता — को आपस में जोड़ना था।

इस परियोजना को लागू करने का कार्य National Highways Authority of India (NHAI) द्वारा किया गया, जो भारत में राष्ट्रीय राजमार्गों के निर्माण, विकास और रखरखाव के लिए जिम्मेदार संस्था है।

⭐ Extra Facts / अतिरिक्त तथ्य

🔹 The project was launched under the National Highways Development Project (NHDP).
🔹 It was initiated during the tenure of Prime Minister Atal Bihari Vajpayee.
🔹 Total length of the Golden Quadrilateral is about 5,846 km.
🔹 It forms a quadrilateral (four-sided network) connecting India’s major economic centers.