SMEs stands for Small and Medium Enterprises. SMEs include those organisations whose turnover and employee range is less.
Mainly, it includes Sole Proprietorship and Partnership firms who donot invest much capital in their business. The definition of SME may vary from individual to individual. One may define SME whose turnover is less than 10 crores and whose employee range is less than 100 while others may have different views.

Same is applicable with service Industry.. after understanding their exact target market and requirements, offer them a service/product and justify it like they can foresee the benefits of procuring it.

Thank you very much for information!!

Do anyone have the stats as to how many SMEs are in India . Also what turnover or capital is taken to treat a company as SME