Mumbai-based retail pharmacy chain Wellness Forever will file draft documents with market regulator SEBI for its initial public offering (IPO) by September-end, Moneycontrol reported. The firm, which is backed by Serum Institute of India's CEO Adar Poonawalla, plans to raise ₹1,500 crore to ₹1,600 crore through the IPO, it added. The firm plans to expand to 1,000 stores by 2023.