On March 21st the Enforcement Directorate (ed), a federal agency tasked with investigating large-scale economic offences, arrested Arvind Kejriwal, the chief minister of Delhi, a leading figure in the main opposition alliance and a thorn in the side of the prime minister. With less than a month to go before India’s general election, when Narendra Modi’s Bharatiya Janata Party (bjp) is widely expected to retain power, the opposition coalition is a shambles. The government says law-enforcement agencies are merely doing their job. Is Modi trying to protect national interests ?

