Farhan Akhtar gives a glimpse of his impressive transformation in 'Toofaan'

Actor Farhan Akhtar, who is being lauded for his role of a boxer in the recently released 'Toofaan', opened up about how he had to transform his body during the shooting of the film.

Taking to Instagram, Farhan posted a collage featuring three photos of himself - first from when he weighed 69 kg, second when he was 85 kg and third from the time when he reduced his weight to 76 kg.

"The many shapes and sizes of Ajju aka Aziz aka Toofaan.What a ride. 18 months of relentless work but worth every drop of sweat, every sore muscle and every pound gained and lost," he captioned the post.

Farhan's transformation has left everyone spellbound.

Actor Hrithik Roshan found it insane.

"Man...69 to 85, that's insane," Hrithik commented.

Farhan's girlfriend and actor Shibani Dandekar wrote: "Love all 3."

Directed by Rakeysh Om Prakash Mehra, 'Toofaan' revolves around the journey of a local goon, Ajju Bhai (Farhan) becoming a professional boxer, Aziz Ali.

Actors Mrunal Thakur and Paresh Rawal are also a part of the movie, which is now streaming on Amazon Prime Video.

( With inputs from ANI )