INDIAN GEOGRAPHY

Detailed explanation-1: -The state highways are maintained by the respective states or union territories through their public works department (PWD). Zilla Panchayats have the role of maintaining the road infrastructure of the area under the jurisdiction of the respective Panchayats.

Detailed explanation-2: -The correct answer is Zilla Parishad. District roads connect district headquarter to other places of the district. Zilla Parishad construct and maintain the district roads.

Detailed explanation-3: -The Zilla Panchayat is a body corporate and is assigned a legal status. The Zilla Panchayat is entrusted with execution of development schemes, providing civic functions in rural areas and looking after the duties of the government delegated in respect of certain department as per the schedule.

Detailed explanation-4: -The National Highways Authority of India (NHAI) and the National Highways and Infrastructure Development Corporation Limited (NHIDCL) are the authorities responsible for the development, maintenance and management of the National Highways in India.

Detailed explanation-5: -The Zila Parishad is an official body that coordinates the activities of the Panchayats in all its developmental activities, such as minor irrigation works, vocational and industrial schools, village industries, sanitation and public health among others.