Adani Group promoters raised $1.87 billion, or about Rs 15,446 crore, on Thursday by selling stakes in four companies of the apple-to-airports conglomerate to U.S.-based investment firm GQG Partners. The investments were made across Adani Enterprises Ltd., Adani Ports and Special Economic Zone Ltd., Adani Green Energy Ltd., Adani Transmission Ltd., according to a group statement.