Here is the full form of IAS, IPS, DM, IRS, IFS:

1. IAS (Indian Administrative Service)
   • Premier civil service of India.
   • Holds key positions across government administration.
   • Formulates & implements policies, and manages programs.
   • Holds important positions in district administration.
2. IPS (Indian Police Service)
   • Leads police forces of states and Union Territories.
   • Maintains law and order, and investigates crimes.
   • Supervises the police force.
3. DM (District Magistrate)
   • Position often held by IAS officers.
   • Head of district administration.
   • Maintains law and order, and collects revenue.
   • Implements government programs at the district level.
4. IRS (Indian Revenue Service)
   • Assesses and collects taxes.
   • Investigate tax evasion.
   • Formulates tax policies.
5. IFS (Indian Forest Service)
   • Manages and protects India’s forests and wildlife.
   • Involved in conservation activities, and forest management.
   • Conducts research related to forestry.