Public Sector Units (PSUs) are companies in which the Government of India holds a majority ownership stake. These companies operate across sectors such as banking, energy, defence, mining, and infrastructure while supporting economic development and public welfare. Some PSUs are listed on stock exchanges, allowing public investment through the capital market. Depending on their financial performance and operational autonomy, eligible companies may receive Maharatna, Navratna, or Miniratna status from the government.
