earliest bricks were made from clay / mud and left to dry in the sun until hard enough to use for building.
​clay mixed with water is shaped then left to dry or placed in a kiln to harden.
​pottery seems to have been invented in many places independently of each other. change the pin number.
if the customer want to change their registered mobile number which was attached to net banking click on page with a link change mobile number.
then after changing mobile number try out with new changed number to change their pin number or password. 