Reserve Bank of India (RBI) is examining Tata Sons application to de-register it as a core investment company (CIC) under upper-layer non-banking finance company (NBFC-UL). The regulator disclosed the Tata Group’s holding company’s request while releasing the list of 15 companies that fall in the category, including Tata Sons, Tata Capital, Bajaj Finance and Aditya Birla Finance, on Thursday.