Tata Sons is moving toward an initial public offering after the Reserve Bank of India (RBI) rejects its plea to remain private. Multiple investment bankers and valuation experts quoted by Economic Times estimate Tata Sons’ potential IPO value at between ₹9 lakh crore and ₹12.5 lakh crore, reflecting discounts applied to a holding-company structure.

The valuation discussion centres on what investors pay for Tata Sons’ listed and unlisted stakes. Sources describe a “look-through” approach that values the underlying portfolio at about ₹15–16 lakh crore—roughly ₹12 lakh crore from listed holdings and about ₹4 lakh crore from unlisted assets. Experts say investors then apply a holding company discount (described as around 41–45% for listed holdings and about 15% for unlisted assets) and additional IPO-related discounts to reach the expected trading value range.

Economic Times also notes that the unlisted portfolio has losses on the order of tens of thousands of crore, partially funded through dividend income. One outlet angle highlights that constraints on valuation may increase due to regulatory policies and governance changes once Tata Sons is listed, while another stresses that investors will price each stake using market prices and comparable transactions for unlisted businesses.