highlight the role of government in promoting small businesses ?

Dear Kalaan, in this question you can write the measures taken by government to solve the problems of finance and marketing in the small scale sector.This topic is covered in our NCERT solutions. You can refer to the same following the below mentioned link.
https://www.meritnation.com/cbse/class11-commerce/ncert-solutions/business-studies/business-studies/small-business/page224-Long-Answers-qno4/1161_5372_34620/what-measures-has-the-government-taken-to-solve-the