The institution responsible for construction and maintenance of India's highways is:

Correct option is D

The correct answer is (d) National Highway Authority of India

Explanation:

• The National Highway Authority of India (NHAI) is the institution responsible for the construction and maintenance of India's highways.
• NHAI operates under the Ministry of Road Transport and Highways and plays a crucial role in developing and managing the National Highways network across the country.

Information Booster:

National Highways Authority of India (NHAI): Overview

• Role and Function: NHAI is the leading body in India responsible for the development, maintenance, and management of National Highways.
• Establishment:
• It was established under the National Highways Authority of India Act, 1998 and became operational in February 1995.
• It functions under the Ministry of Road Transport and Highways.
• Composition:
• NHAI is headed by a full-time Chairman and comprises up to five full-time members and four part-time members, all appointed by the Central Government.
• The part-time members include:
• Secretary (Road Transport and Highways)
• Secretary (Expenditure)
• Secretary (Planning)
• Director General (Road Development) & Special Secretary (DG RD & SS).
• Wings at Headquarters:
• NHAI has specialized wings to manage its various functions:
• Technical
• Finance
• Administrative
• Vigilance

These divisions ensure efficient functioning and accountability in NHAI's operations.