After the exit of its financial services head, IT services company HCL Technologies has assigned the charge of the vertical to company’s old hand Rahul Singh. Singh, who now heads BPO services for the company, will also be having additional charge of the financial vertical as President, Financial Services & Business Services. Singh who started his career with Citi in 1986 joined HCL Technologies in 2010 as president, business services and corporate vice-president.