India's Supreme Court on Thursday scrapped a seven year-old election funding system that allows individuals and companies to donate money to political parties anonymously and without any limits.
The decision is seen as a setback for Prime Minister Narendra Modi's Bharatiya Janata Party (BJP), which has been the largest beneficiary of the system it introduced in 2017.
The system, called 'Electoral Bonds', was challenged by opposition members and a civil society group on grounds that it hindered the public's right to know who had given money to political parties.
Under the system, a person or company can buy these bonds from the state-run State Bank of India and donate them to a political party of their choice.
A five-judge bench headed by Chief Justice D.Y. Chandrachud said that the system is "unconstitutional".
The court directed SBI to not issue any more of these bonds.

Trump not satisfied with Iran's latest proposal, will not 'leave war early'
Iran sends proposal for negotiations with US to mediator Pakistan
Iran threatens painful response if US renews attacks
US Navy acting 'like pirates' to carry out naval blockade of Iranian ports, says Trump
At least 11 dead in western Mexico after bus careens off highway