Dear, if you are in business for income proof creation, prepare an income certificate with any auditor. If you are taking a salary from your business, prepare that in your balance sheet with an auditor and make Form 16 for yourself from your organization with Auditor certification.
Form 16 can be given only to the employer for their employees, or you might have to prepare Form 12G for income proof as a professional or consultant. Everything should be certified by an account auditor with proof of income, investment, and expenses as per the IT Act limitations. Please contact your accounts auditor for more clarity.