when the dt is generating then why are features repeating? Are they repeating for the sub-trees or what?
Why are the features repeating
Hey @abhishek_goel1999, yes these features are repeating for the subtrees, means like if there is a feature like age and split is performed at a node than it may be possible that age can be selected again in the right/left subtree to make the split, if its information gain is higher than that of others.
Hope htis cleared your doubt. 
. Plz mark the doubt as resolved in my doubts sections if you find its resolved. 