Tata Trusts and Tata Group are open to offering Shapoorji Pallonji Group the option to sell 4-6% of its Tata Sons stake amid an ongoing standoff between Tata Trusts' trustees over the conglomerate's control, Moneycontrol reported. The sale will provide liquidity to SP Group, which is facing a ₹30,000-crore debt burden. SP Group owns an 18.4% stake in Tata Sons.