Representative imageNEW DELHI: Unique Identification Authority of India waived off all charges for mandatory biometric update of Aadhaar for children, an official statement said on Saturday. The fee waiver has kicked in effective Oct 1 and will be in force for a period of one year. "As per existing rules, fingerprints, iris and photo are mandatorily required to be updated in Aadhaar when a child reaches the age of five. This is called the first Mandatory Biometric Update (MBU). With this decision, MBU is now effectively free for all children in the age group of 5-17," the statement said.