Black money refers to funds earned through illegal or underground economic activities that are untaxed. India generates the most black money in the world at $1,456 billion, mostly through corruption, tax evasion, and illegal activities. Having large amounts of untaxed black money has negatively impacted India's economy by worsening income inequality and poverty, reducing development, and inflating prices. Measures like amnesty schemes, simplifying tax laws, increasing transparency, and international cooperation could help reduce the generation of black money in India.