Disjoint Groups Sudoku (Fun With Sudoku #13)

Slowly I want to create and post most of the known Sudoku variations. I will be either posting it as part of The League of Extraordinary Ladies and Gentlemen or the Fun With Sudoku Series.
Till now I have not created any Disjoint Groups Sudoku. I have attempted creating this Sudoku twice. Once it was too easy and on the second try, it was very tough. Today, I am posting the Disjoint Groups Sudoku which is an easy one and I am posting it as the 13th Sudoku of the Fun With Sudoku Series. Can you solve this Disjoint Groups Sudoku puzzle?

Rules of Disjoint Groups Sudoku

Classic Sudoku Rules apply. Additionally, cells with the same position in 3x3 boxes contain numbers from 1 to 9 i.e no number can repeat in the same position in 3x3 boxes.

Disjoint Groups Sudoku (Fun With Sudoku #13)

Disjoint Groups Sudoku (Fun With Sudoku #13) Solution

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Solution of Tripod Sudoku (Fun With Sudoku #12)

Tripod Sudoku (Fun With Sudoku #12) Solution