New Delhi, Jan. 11 -- Concerns about slower US economic growth poses the biggest risk to India's $167 billion information technology (IT) outsourcing industry as experts fear Fortune 1000 companies may cut spending on technology, hurting Tata Consultancy Services Ltd, Infosys Ltd and Wipro Ltd. Demand for digital services, which includes data crunching and artificial intelligence (AI) powered platforms, is still linked to the overall health of an economy, they say. For this reason, analysts will be closely monitoring management commentary from homegrown IT firms on the growth outlook for the companies when companies report earnings starting this week. "If the economies of the world are going to suddenly change in terms of their performance,...