Mumbai: Late on Tuesday, as Prime Minister Narendra Modi blindsided the nation with his biggest step against tax evasion, many Indians turned to Google for help. āHow to convert black money into white moneyā was trending on the search engine, with queries surging soon after Modi announced the ban on Rs500 and Rs1,000 ($15) notes, rendering 86% of currency in circulation worthless. āBlack moneyā is the local term for cash stashed away to avoid tax. āThis one decision will change social culture, in the way people keep money and spend,ā finance minister Arun Jaitley told reporters on Wednesday about the governmentās move. āThe honest person has the satisfaction to be honest and the not-so-honest worry.ā Most of the searches on Google were from Modiās home state of Gujarat, Google Trends show, a region known for its entrepreneurial spirit, small traders and jewellers that form the power base of the ruling Bharatiya Janata Party. Maharashtra, which includes the financial hub M...