Cello Worlds stock market debut minted a new billionaire, Pradeep Rathod, known as the Casserole king. The stock closed at Rs 788.40 on Friday, marking a market cap of Rs 16,732.29 crore, with Rathod and family holding over 78% of the company. The IPO, priced at Rs 617-648 per share, saw nearly 39 times subscription, buoyed by the company's diverse product portfolio, including consumer houseware, writing instruments, and furniture.