my elder son is 5 years 11 months old he is in l.k.g right now in which class should he will be according to age plzz is it Right class or not plzz suggest me

A. By the age of four our child can be in nursery and it’s actually should be in nursery according to the education board and by the age of five a child can be in lower KG and then upper KG and by six we expect a child to come into standard first