Classic Sudoku (Fun With Sudoku #20)

Few years back I was part of Toastmasters International  being member of Bangalore Toastmasters Club. I have completed my Competent Leadership program under Toastmasters. This is second Sudoku which I created for Bangalore Toastmasters Club newsletter. Hint given reads BTM (Bangalore ToastMasters). I miss Toastmasters a lot and hopefully soon, I will be again member of Toastmasters.
I am re-publishing this Sudoku as 20th Sudoku in Fun With Sudoku Series.

Classic Sudoku Rules

Classic Sudoku (Fun With Sudoku #20)

Classic Sudoku (Fun With Sudoku #20) Solution

Previous Fun With Sudoku Series Puzzle: Neighbours Sudoku (Fun With Sudoku #19)

Next Fun With Sudoku Series Puzzle: Missing Sudoku (Fun With Sudoku #21)

Solution of Poor Neighbours Sudoku (Daily Sudoku League #63)

Poor Neighbours Sudoku (Daily Sudoku League #63) Solution