Re: What is the difference between IAS,PCS and IRS exam conducted by UPSC?
Indian Administrative Services, abbreviated as IAS, are actually the civil based administrative services of the Government of India. The officers that are designated as IAS are the ones that relate to the policy making of our nation and relates to the complete bureaucracy of the Union Government that covers both the two forms, that is the Central as well as the State government.
Provincial Civil Services, abbreviated as PCS, are actually the civil based administrative services of the State Government. These officers relate to the policy making of the state to which they belong.
The Indian Revenue Service ( भारतीय राजस्व सेवा, Bhāratīya Rājaswa Sevā), abbreviated as IRS, is the revenue service of the govt. of India. It is one of the Central Civil Service. The Service functions under the Department of Revenue in the Union Ministry Of Finance and is concerned with the collection and administration of the various direct and indirecttaxes accruing to the Union Govt.
IRS comprises two branches - IRS (Customs and Central Excise) and IRS (Income Tax), which are controlled by two separate statutory bodies, viz.,centeral Board of Excise and Customs (CBEC) and Central Board of Direct Taxes (CBDT) respectively