The Union Budget, or the annual financial statement, according to Article 112 of the Indian Constitution, is a statement of the estimated receipts and expenditures of the central government for a financial year running from April 1 to March 31.
The Union Budget, which keeps account of the government's finances for the fiscal year, has two components -- the Revenue Budget and the Capital Budget. The government's revenue receipts and expenditure are listed under the Revenue budget, while the Capital budget deals with capital receipts and payments of the government. The former is akin to the profit & loss account