Real estate developer DLF will invest ₹200 crore to expand its mall at Vasant Kunj, in the national capital, with a dedicated shopping area for luxury products, according to a senior executive. The company plans to develop 300,000-400,000 sq ft of space as a luxury retail area next to DLF Promenade and will apply for approvals from the Delhi Development Authority (DDA), the executive told ET.