Board should consider Tata Sons listing amid RBI, SP Group IPO push: Shriram Subramanian by ET Markets | April 15, 2026 7:06 pm | Indian Stocks, Market, News Listing calls for Tata Sons intensify as Reserve Bank of India and Shapoorji Pallonji Group push for IPO, while Tata Trusts resists transparency concerns ahead of a crucial board meeting to decide future direction.