India's Modi faces biggest election test since 2014 landslide

By Rupam Jain and Tom Lasseter LUCKNOW, India (Reuters) - Indian Prime Minister Narendra Modi faces his biggest electoral test since coming to power when the battleground state of Uttar Pradesh, which he swept three years ago, holds an election starting on Saturday. The banknote ban, launched by Modi three months ago to purge the economy of untaxed income and proceeds of crime and corruption, has disrupted daily life and commerce, and caused the economy to slow. On the campaign trail, Modi has s