Overlapping Sudoku (Mini Sudoku Series #15)

Overlapping Sudoku is appearing in the finals of Sudoku Champs 2015. I have just now created this mini Overlapping Sudoku so that a newcomer can understand the rules of this Sudoku better.

I am posting this Mini Overlapping Sudoku as the 15th Sudoku in Mini Sudoku Series. Can you solve this Mini Overlapping Sudoku puzzle?

Rules of Overlapping Sudoku

 Mini Classic Sudoku Rules apply to both overlapping grids.

Overlapping Sudoku (Mini Sudoku Series #15)

Overlapping Sudoku (Mini Sudoku Series #15) Solution

Previous Mini Sudoku Series puzzle: Classic Sudoku (Mini Sudoku Series #14)

Next Mini Sudoku Series Puzzle:  Linked Classics Sudoku (Mini Sudoku Series #16) 

Answer to Mini Sudoku Series puzzle titled Irregular Sudoku (Mini Sudoku Series #19)