The ‘Pradhan Mantri Gram Sadak Yojana’ aims to improve:

Rural road connectivity
Urban infrastructure
Railway network
Power supply

The correct answer is: Rural road connectivity.

The Pradhan Mantri Gram Sadak Yojana (PMGSY) is a government of India scheme launched in 2000 to provide connectivity to unconnected villages and improve the quality of existing rural roads. The scheme aims to provide all-weather road connectivity to all villages with a population of 500 or more and a population density of at least 250 persons per square kilometer.

The PMGSY has been successful in improving rural road connectivity in India. As of March 2019, the scheme has constructed over 1.5 lakh kilometers of rural roads and provided connectivity to over 1.2 lakh villages. The scheme has also helped to improve the quality of life in rural areas by making it easier for people to access markets, schools, and healthcare facilities.

The PMGSY has been praised for its effectiveness and its contribution to rural development. However, the scheme has also been criticized for its high cost and for its failure to reach some of the poorest villages in India.

The other options are incorrect because:

  • Urban infrastructure is the responsibility of the state governments.
  • The railway network is the responsibility of the Ministry of Railways.
  • Power supply is the responsibility of the Ministry of Power.