The National Stock Exchange of India Ltd., operator of the world's largest derivatives exchange by trading volume, plans to begin formal marketing for its initial public offering as early as next week. The move advances what could rank among the largest-ever IPOs in the country. Sources familiar with the matter said the deal is valued at roughly $3 billion.

The listing marks a significant milestone for the exchange, which has been considering a public offering for years. It also signals deepening investor appetite for Indian financial infrastructure, as the NSE processes trillions of dollars in derivatives trades annually. The company has long dominated the country's equity derivatives market.

At $3 billion, the offering would place the NSE among India's top-tier IPOs by size. Proceeds are expected to be used for general corporate purposes and expansion. The exchange's dominant market position and high trading volumes are likely to attract strong institutional interest both domestically and abroad.

The listing could unlock substantial value for existing shareholders, including global financial firms and domestic investors. It also sets the stage for greater transparency and scrutiny of the exchange's operations. A successful IPO may encourage other Indian financial institutions to pursue public listings.

A potential challenge remains regulatory approval, as the NSE has faced past compliance issues with Indian authorities. Investors will watch closely how the Securities and Exchange Board of India handles the offering.