Traditional Knowledge Digital Library (TKDL) is a unit of __?
[D]None of them

Recently, Traditional Knowledge Digital Library (TKDL), a unit of Council of Scientific and Industrial Research (CSIR), has been successful in protecting its traditional knowledge by preventing an attempt made by British firm Pangaea Laboratories Ltd., to take patent on a medicinal composition containing turmeric, pine bark and green tea for treating hair loss. Till date, CSIR-TKDL has prevented approx 200 firms from acquiring patent rights on products grown and nurtured in India.