Class Xll Business Studies - B.st Cbse Project Practical File on Marketing Management sample last year topper cbse usp unique selling proposition Start a company of your choice, brand name, product name conclusion acknowledgement teachers signature Syllabus of Project Work Practical File Class 12 1. Elements of Business Environment: a) Changes in mode of Packaging. (milk supplied in plastic bottles to vending machines) b) Change from Coca cola and fanta in the seventies to pepsi and coke in nineties. c) Change in role of women in the past 25 years relating to joint families, Women as bread earner of family , Changes in the requirement of trend of mixers , washing machines , micro wave and standard of living.