Odd Man Out - 03

Explanation:-

In all other groups, the second, third and fourth letters respectively three, five and seven steps ahead of the first , second and third letters respectively.

Explanation:-

In all other groups, one letter occurs twice.

Explanation:-

In all other groups, the number of letters skipped between two consecutive letters increases by one from left to right.

Explanation:-

All other groups consist of alternate letters.

Explanation:-

All other groups consist of alternate letters, though not in order.

Explanation:-

In all other groups, the second, fourth and the third letters are respectively four seven and one steps ahead of the first, second and fourth letters respectively.

Explanation:-

In all other groups, the first and second as well as the third and forth letters are consecutive.

Explanation:-

In all other groups, each of the first three letters is four steps ahead of the next letter.

Explanation:-

In all other groups, the second and fourth letters are each four steps ahead of the first and third letters respectively, while second and third letters are consecutive.

Explanation:-

This is the only group containing two vowels.