The Revenue Budget comprises the government's revenue receipts and revenue expenditure. Under revenue receipts, the key component is tax revenues which include income tax, GST, corporate tax, customs duty, etc. Then there is non-tax revenue in the form of interest, dividends from PSUs, profits from subsidiaries, fees, fines, penalties, etc. While revenue expenditure refers to the regular expenses incurred for the government's routine & smooth operation as well as the range of services provided to the public. These include salaries, maintenance, wages, etc. In the event that the revenue expenditure is more than revenue receipts, the government is said to be running a revenue deficit.