3.3 volt power supply is one of the main issue when we use ESP8266 - 01 as a standalone board. The board runs in 3.3 voltage . More than this voltage, it may damage your board. In this tutorial I am going to show how to make a simple 3.3 volt regulator for your ESP8266 board. You can make this at a cost of 0.4$ (~20 rupees). There are also available some 3.3 volt power supply for purchase but there cost is more than this.
