MSMEs are small businesses in India defined by investment levels. They contribute significantly to India's economy through industrial output, exports, and employment. Under MSME definitions, micro enterprises have investments up to Rs. 1 crore, small enterprises up to Rs. 10 crore, and medium enterprises up to Rs. 20 crore. MSME support structures provide various services including testing, training, consultancy, and assistance with exports and pollution audits. MSME schemes aid skill and business development through programs like EDP, which offers free entrepreneurship training.