France, April 5 -- The United States, Germany and the United Nations have expressed concern after Indian police arrested Delhi's chief minister on corruption charges just weeks ahead of national elections. The rulingBharatiya Janata Party (BJP) is accused of seeking to undermine opposition-led state governments in the run-up to the polls.

Arvind Kejriwal is the fourth leader of the Aam Aadmi Party (AAP, Common Man's Party) to be arrested on charges of taking bribes from businesses seeking permits to sell liquor in the city - but so far the police have not established a link to any purported crime.

Kejriwal claims it is a plot by Prime Minister Narendra Modi's nationalist BJP to dislodge AAP from Delhi state, where it has governed since ...