According to a report by the National Institute of Public Finance and Policy, the estimated amount of black money in India is around 30 lakh crore.

The term 'black money' was first used in India in 1947, when the then Finance Minister, R. K. Shanmukham Chetty, referred to it in his budget speech.

The main sources of black money in India are tax evasion, corruption, smuggling, and other illegal activities.

Black money has a number of negative consequences on the Indian economy, including inflation, reduced government revenue, and increased corruption.

The Indian government has taken a number of measures to curb black money, including demonetization, the Benami Transactions (Prohibition) Act, and the Black Money (Undisclosed Foreign Income and Assets) and Imposition of Tax Act.

Black money has a negative impact on the common man, leading to higher prices, reduced job opportunities, and increased poverty.

The RBI plays a crucial role in curbing black money by regulating the flow of money in the economy, monitoring suspicious transactions, and imposing penalties on those who engage in black money transactions.

The CBI plays a crucial role in curbing black money by investigating cases of black money, arresting and prosecuting those who engage in black money transactions, and seizing the assets of those who are convicted of black money offenses.

The Income Tax Department plays a crucial role in curbing black money by collecting taxes from individuals and businesses, investigating cases of tax evasion, and imposing penalties on those who evade taxes.

The FIU plays a crucial role in curbing black money by collecting and analyzing financial data, identifying suspicious transactions, and sharing information with law enforcement agencies.

The public plays a crucial role in curbing black money by reporting suspicious transactions to the authorities, refusing to engage in black money transactions, and demanding receipts for all transactions.

There are a number of challenges in curbing black money in India, including the lack of political will, the complexity of the black money network, and the lack of public awareness about black money.

There are a number of suggestions for curbing black money in India, including strengthening the legal framework, improving the enforcement of laws, and raising public awareness about black money.

It is difficult to predict the future of black money in India, as it depends on a number of factors, including the political will, the effectiveness of law enforcement, and the public's awareness of black money.

Black money has a number of negative consequences on the Indian economy, including inflation, reduced government revenue, and increased corruption.