CSR expenditure by cos listed on NSE up 18% to Rs 11,961 cr: Report Reliance Industries, ONGC, Indian Oil Corporation, HDFC Bank, Tata Consultancy Services, Infosys, Tata Steel, ITC, NTPC and Power Grid Corporation of India are the top 10 companies which spent the most on CSR during financial year 2018-19, the report said.