If a stock is trading around Rs. 185, you have to buy the stock at/above Rs. 185.64. This means, the stock breaks some resistance level at Rs. 185.64. Stop loss at Rs. 182.25 means, you have to sell the stock at this level by booking some loss, otherwise you may incur some heavy loss. Stop loss is positioned at some support level. If that support level is breached, the share price may go further down. Many trading accounts provide the option of setting the stop loss while buying the stock. Target 1 of Rs. 188.97 means, you may sell the stock at this level if you think you got some profit. Otherwise, you may wait for Target 2. Generally, if the stock breaches Target 1, it may reach Target 2. Similarly, if it breaches Target 2, it may reach Target 3 and so on.