In a letter dated July 29 sent to director of basic education Anil Bhushan Chaturvedi, UP Board secretary Bhagwati Singh said headmasters of government-run primary and upper primary schools often fail to mention the document on the basis of which a child’s date of birth is recorded at the time of first admission. This creates doubts about the authenticity of school records and leads to a large number of requests for correction of dates of birth in UP Board certificates.