12 years 8 Angula 16 years 9 Angula 20 years and onwards it should be 12 Angulas only. These measurements may be slightly increased for those of other age groups based on age, strength and body build. Its orifice at its root should be 1 Angula in diameter for children of one year of age. Diameter of the orifice should be increased by ½ angula for different age groups and its maximum is 3 Angula diameter.
12 years 8 Angula 16 years 9 Angula 20 years and onwards it should be 12 Angulas only. These measurements may be slightly increased for those of other age groups based on age, strength and body build. Its orifice at its root should be 1 Angula in diameter for children of one year of age. Diameter of the orifice should be increased by ½ angula for different age groups and its maximum is 3 Angula diameter.