The Golden Quadrilateral (Hindi: स्वर्णिम चतुर्भुज, romanized: Svarnim Chaturbhuj; abbreviated GQ) is a national highway network connecting several major industrial, agricultural and cultural centres of India.

Other major cities connected by this network include Ahmedabad, Bengaluru, Vellore, Balasore, Bhadrak, Bhubaneswar, Bhilwara, Cuttack, Berhampur, Durgapur, Faridabad, Guntur, Gurugram, Jaipur, Kanpur, Pune, Kolhapur, Surat, Vijayawada, Eluru, Ajmer, Visakhapatnam, Bodhgaya, Varanasi, Prayagraj, Agra, Mathura, Dhanbad, Gandhinagar, Udaipur, and Vadodara.

The main objective of these super highways is to reduce the travel time between the major cities of India, running roughly along the perimeter of the country.

[citation needed] Prime Minister Atal Bihari Vajpayee laid the foundation stone for the project on 6 January 1999.

The four legs use the following National Highways (new numbering system): The completed Golden Quadrilateral passes through 12 states and a union territory: In August 2003, Jharkhand-based project director Satyendra Dubey, in a letter to the prime minister, outlined a list of bad faith (mala fide) actions in a segment of a highway in Bihar.

[13] Dubey's name was leaked by the prime minister's office to the NHAI,[13] and he was transferred against his wishes to Gaya, Bihar, where he was murdered on 27 November.