Fiscal and Revenue deficits

Revenue expenditure(Not good): Spending on day to day ops
Capital expenditure(Good one): Investing for future and will have long term growth ...  

Revenue receipt: Money receiving from the sale of goods and services.
Capital receipt: Amount received after selling off assets, bonds etc.
 
Fiscal deficit: Excess of expenditure than revenue.
Either due to excessive capital expenditure or revenue deficit.

Revenue deficit: Revenue expenditure more than revenue receipts ...