A fixed deposit is a financial instrument offered by banks or financial institutions where you deposit a lump sum of money for a fixed period, typically ranging from a few months to several years.

In return, you receive a predetermined interest rate, and your principal amount is guaranteed. The phrase "up and down" likely refers to the inherent volatility of the stock market.

Stocks can experience upward and downward price movements based on various factors, including economic conditions, company performance, geopolitical events, and investor sentiment.The interest rates on such loans tend to be exorbitant, leaving you in a very precarious financial situation.