Mumbai, Sept. 15 -- The Reserve Bank of India rejected Tata Sons' application to surrender its Core Investment Company (CIC) registration. The decision has increased expectations of a potential public listing of Tata Sons.

Tata Chemicals surged 20%, while Tata Investment Corporation gained 12.43%. TMPV advanced 4.47%, while TCS rose 3.83%. Indian Hotels Company gained 1.01%. Tata Power rose 0.84%, while Voltas advanced 0.78%. Tata Consumer Products gained 0.58% amid the broader buying interest in Tata Group stocks.

Tata Sons is the principal investment holding company and promoter of Tata Group companies.

The RBI's decision has renewed focus on Tata Sons' listing obligations. Tata Sons is classified as an NBFC-Upper Layer entity. Under...