- 1951: For 35 years and through six promotions, May 10, 1951, was recorded as the year of birth of General V.K. Singh. His birth and matriculation certificates, his service records, his IMA ID card and NDA records all reflect 1951 birth.
- 1950: An entry in the UPSC form to apply for the NDA in 1965, written in Gen Singh’s hand, shows his date of birth as May 10, 1950. The IMA dossier shows his year of birth as 1950. His last three promotions were based on 1950 being his year of birth.