Larsen & Toubro Infotech (L&T Infotech) on Friday announced that its board has approved a scheme of amalgamation and arrangement with Mindtree. Under the scheme, L&T Infotech will issue 73 shares for every 100 shares of Mindtree. After the completion of the merger, Larsen & Toubro Limited will hold a 68.73% stake in 'LTIMindtree', the combined entity.