Dear friend!
Please refer to Tandon Committe recomendations before you start for.
For existing concerns, you need to start the statements with audited figures, later on with projected figures by increasing the amounts in a specified % which varies from business to business.
For new concerns, you need to create a project report by adding the expenditure , sales & other income etc that possibly may occur to that concern.
The important thing is you must be able to achieve the ratios above the benchmark level prescribed by the Banks. For example, Banks prescribe Current ratio should be more than 1.32. The projceted current ratio should be more than 1.32.
You can get the proforma for this from shared files in this site itself.