Li-Fi is light based bi-directional, fully networked, wireless communication technology, where the light source is used to transmit the data wirelessly. By turning LED light On and Off very rapidly (Millions time per seconds), we can transmit the data wirelessly. Advantages of Li-Fi over other Technologies: 1) Speed: Li-Fi has the capability to provide speed up to 100 Gbps (Max .Recorded speed is 224 Gbps !!!) 2) Security: As light can not cross the walls, so data cannot be hacked by outsiders and hence it provides one more layer of security 3) Safety: Unlike radio waves, exposure to light is safer for human beings 4) Congestion free: The bandwidth of light spectrum is 1000 times more than radio spectrum and hence it is congestion free as well as free of electromagnetic interference