Sell stocks- Try your hands trading at stock market. Sell the
stock when the market prices goes up to leverage profit. Selling of
stocks would generate wealth that could be later on put into your
business.
Reach into savings account- Use your savings account wisely to
pump cash into your business. The money must be used very
cautiously. You don't want to go broke.
Use cash from maturing or investments- You must be using some
sort of savings account to save money for your future. Use that
money for your business.