Fiscal policy uses government spending and taxation to influence economic conditions like aggregate demand, employment, inflation, and growth. It is used alongside monetary policy to achieve macroeconomic goals like stabilizing the economy. Key tools of fiscal policy include government spending, transfer payments like social security, and taxes. Fiscal policy plays an important role in developing countries by mobilizing resources, providing employment, promoting stability, encouraging investment and savings, and subsidizing consumption and production for the poor. The goals of India's fiscal policy are to increase investment and savings rates to achieve fast economic development.