TSF Investments Limited, formerly Sundaram Finance Holdings Limited, is an India-based specialist investment company. The Company is primarily engaged in the business of investments, business processing, and support services. The Company is primarily involved in strategic investments in the auto component and manufacturing industries. Its segments include Investments, Domestic Support Services, and Overseas Support Services. It is primarily focused on investments in the auto component industry. Through the Company's investment subsidiary, Sundaram Business Services Limited and its own operations, it also provides outsourced business processing and support services.