RBI blocks Tata Sons' private route, sparking massive rally in Tata group stocks

The Reserve Bank of India rejected Tata Sons' bid to voluntarily surrender its Certificate of Registration, closing a regulatory channel that would have allowed the holding company of India's largest conglomerate to stay private. The decision triggered a pronounced rally in Tata group equities on Tuesday, with Tata Chemicals jumping 20% to the upper circuit, Tata Investment Corporation rising over 15%, and Tata Motors PV adding more than Rs 7,016 crore to investor wealth.

Shapoorji Pallonji Group, the largest minority shareholder with an 18.37% stake, argues that a public listing is the most practical route to unlock value. Market experts estimate a prospective IPO could be priced between Rs 9 lakh crore and Rs 12.5 lakh crore, representing a steep discount to the estimated Rs 15-16 lakh crore portfolio. An equity-capital-markets head at a top domestic bank calculated a 41-45% holding-company discount to the listed assets and an additional 10-15% discount to fair value for the IPO. Vimal Taparia of Morphis Management Services highlighted the difficulty of directly valuing a conglomerate of this magnitude.