The crisis engulfing the Adani Group intensified on Monday as hundreds of members of India's opposition parties took to the streets to press for a probe into allegations by a U.S. short-seller against the conglomerate which triggered its market rout. Shares in billionaire Gautam Adani's companies have been in free-fall since a Jan. 24 critical report by Hindenberg Research, with group cumulative market losses now topping $110 billion, sparking fears of wider financial contagion. Opposition parties, who last week called for a parliamentary panel to investigate the saga and disrupted proceedings, have questioned Indian Prime Minister Narendra Modi's closeness with Adani.