The 170 centimeters height of 5 years old boy shocked everyone

Children have a
good growth between 3-7 years and as the saying goes, they grow up rapidly.
Whereas, they normal size in this time is 80 centimeters or one meter and out
of this range is abnormal.
 Karan Sing is 5 years child that his name before  entered in Guinness Book because of his 7
kilograms weight and 63 centimeters height at birth. 
However, this child want
to keep going and now his name entered to Guinness as a highest 5 years child
in world. This Indian boy is in growing strangely. 
While he has 5 years but his
height is 170 centimeters. This height is a normal for people with 17-18 years