Ahmedabad-based Adani Enterprises on Friday upsized its qualified institutional placement (QIP) to Rs 15,000 crore from a base size of Rs 10,000 crore, noticing huge investor demand for the issue. The share sale drew bids worth roughly Rs 38,000 crore, 3.8 times the base offer and among the strongest responses to a QIP in recent years. The order book was fully pre-filled before the launch, allowing the ports-to-power conglomerate to execute the deal within 48 hours, including investor roadshows, according to sources.