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Cottage industries are industries where the products and services are mostly home-based and not factory based. Cottage industries involve production in small scale as they don't use high-tech machines and factory- methods. 
However the products and services of cottage industries are mostly unique and not possible to produce in factory. 
Cottage industries are very helpful to provide part-time low income employment.
But, many a times, cottage industries face huge disadvantages as they can't face the competition with big scale industries.
However now a days  cottage industries are being encouraged.
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