Political parties every year are required to submit to the Election Commission of India the details of donors who have contributed above Rs 20,000 in a financial year (between April 1 and March 31).
Parties provide details of the name, address, PAN, mode of payment, and amount contributed by each donor who has made a donation above Rs 20,000 in their submission.
A 2014 report by the Association for Democratic Reforms (ADR), democracy watchdog, said various sectors of business houses in 8 years, between the financial year 2004-05 (FY05) and FY12, donated a total of Rs 378.89 crore