BJP supporters in Guwahati, Assam, wear masks of Indian Prime Minister Narendra Modi and dance as they celebrate the party's victory. AFP / Biju Boro
BJP supporters in Guwahati, Assam, wear masks of Indian Prime Minister Narendra Modi and dance as they celebrate the party's victory. AFP / Biju Boro

Modi's victory in the Indian elections offers vital lessons for opponents of populism