Shares of the country's second largest information technology company, Infosys, crashed as much as 12.21 per cent, the biggest single-day fall since first lockdown was implemented to curb the spread of Covid-19 on March 23, 2020, to hit three-year low of Rs 1,219. The stock came under intense selling pressure on Monday morning after the Bangalore-based IT giant lowered its revenue growth guidance for current financial year and its management sounded of uncertain future going ahead due to fears of recession in its biggest market US.