Traditional Knowledge Digital Library is a knowledge repository of the traditional knowledge. Setup by the Indian government, the objective of this library is to protect the ancient and traditional knowledge of the country from exploitation such as bio-piracy and unethical patents. Data on 65,000 formulations in Ayurveda, 70,000 in Unani and 3,000 in Siddha had already been put in the TKDL, and is being made available in five languages — English, German, French, Spanish and Japanese. TKDL is a collaborative project of The project was taken up in 2001.