1- Charge Panasonic Eluga L2 upto 70 percent.
2- Switch off device.
3- Press & Hold Power and Volume UP key.
4- Android Logo will appear, press Power key to enter Recovery mode.
5- Select Wipe Data/Factory Reset using Volume down key & Press Volume UP to enter.
6- Select Yes-delete all user data using Volume down key & Press Volume UP to enter.
7- After Wiping of Data has been completed, Reboot System now using Volume UP key.
8- Code or pattern has been reset.