Yarns are made from fibres by the process of spinning. Charkha is a hand-operated device used for spinning. Charkha is a hand device which is used to make yarn from the fibre. Powerloom and Handloom are the devices which used to make fabrics from yarn. And knitting needles are also used for making fabrics from yarn by knitting process. So Boojho will use charkha for making yarn from the fibre.