NSE Indices Limited (formerly known as India Index Services & Products Limited (IISL)), a subsidiary of the National Stock Exchange of India (NSE), provides a variety of indices and index related products and services to Indian capital markets. It is based in Mumbai, Maharashtra. NSE Indices Ltd. operates as a subsidiary of NSE Strategic Investment Corporation Limited. The company maintains over 100 equity indices comprising broad-based benchmark indices, sectoral indices, fixed income and customized indices.