Question

what are state highways who maintains these roads
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Answer 1

National Highways(NH) are built , financed and maintained by the central government whereas state highways (SH) are developed by the respective states' public works department.

Answer 2

State Highways:

1. State Highways join join the state capitals with District headquarters and other important towns.
2. These roads are connected to the National Highways.
3. These constitute 4 percent of total road length in the country.
4. The length of State Highways in India is 1,76,166 kms.
5. These are constructed and maintained by the respective State governments.