https://www.business-standard.com/article/economy-policy/india-second-most-affected-country-by-spam-calls-in-2018-says-truecaller-118121801019_1.html
Spam calls grew 300 percent worldwide in 2018, according to Truecaller https://www.theverge.com/2018/12/18/18147077/spam-calls-grew-300-percent-worldwide-in-2018-according-to-truecaller
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