Mumbai, Sept. 15 -- Macquarie Asset Management (MAM) has acquired a stake in Maple Infrastructure Trust, which owns and operates toll roads across India, from global investment group La Caisse, the companies said in a statement on Monday. Macquarie has invested about $450 million, including a $150 million of additional equity earmarked for Maple's future acquisitions, through its fourth Asia-Pacific Infrastructure Fund, while La Caisse has infused about $150 million to support its growth ambitions. The companies did not disclose the exact shareholding and valuation of the deal. Following the transaction on September 11, MAM and La Caisse will jointly own controlling stakes in the Infrastructure Investment Trust's investment manager and proj...