Zetwerk Pvt Ltd., an Indian supply chain startup, is considering options to raise as much as $1 billion through an IPO.The company has held talks with investment banks and a potential listing in Mumbai next year could value the firm at several billion dollars.No final decisions have been made, and details such as size, value, and timing may change.Zetwerk's technology platform connects suppliers and customers in various sectors, including aircraft engine manufacturing and consumer electronics.