'For every formal worker, there are 8-10x workers that are invisible'

India's formal sector has 8-10x more 'informal' workers than formal ones, and nearly all of them are invisible to the companies and the government. Not only in terms of official statistics, but social security too. Sonvi Khanna of Social Compact explains why this is impacting company productivity, in conversation with Deputy Editor TCA Sharad Raghavan.