Touchy Sudoku (Fun With Sudoku #44)

Touchy Sudoku is a very interesting Sudoku variation. In the Non Consecutive Sudoku, consecutive numbers don't touch each other. However here in Touchy Sudoku, each number has to touch one of the consecutive numbers. This Sudoku variation, I first time saw in the 3rd World Sudoku Championship which was held in the year 2008 in Goa, India.
This is the Touchy Sudoku that I prepared for Sudoku Mahabharat Episode 6. My first version of this puzzle was very very easy. It was having 4 more hints and later these hints at R8C1, R9C2, and corresponding symmetrical hints were removed to make it more interesting and a little tough as compared to the previous original version of this Sudoku. This puzzle was very much liked by the participants of this championship.
This Touchy Sudoku is my second Sudoku posted on the website. My earlier Touchy Sudoku I created for the participants to prepare for Sudoku Mahabharat Episode 6 as a practice puzzle. That practice puzzle was published with the title Touchy Sudoku (Daily Sudoku League #94).
This Touchy Sudoku, I am posting as the 44th Sudoku in the Fun With Sudoku Series. Can you solve this Touchy Sudoku puzzle?