The director said that his colleague, choreographer Remo D'Souza, had taken it up on himself to teach Karan some moves.
"Remo has taken on the challenge of making me do something tiny in the opening act. That is the maximum amount of dance which I should do," he said at the launch of the show held Monday evening.
Karan was also seen dancing on the stage during the launch along with some of the contestants and choreographers. He was also joined with his peers Madhuri Dixit and Remo, who will judge the show with him.
"I don't have the right to even move my foot in front of Madhuri. But "Jhalak..." is a dance show, so I had to do it," he said.
There were also performances by Madhuri and Remo.
Starting June 1, the dance reality show will showcase the dancing abilities of 12 contestants like television actors Drashti Dhami, Shweta Tiwari, Karanvir Bohra, Siddharth Shukla and singer Shaan, among others.
Remo, whose latest film "ABCD" had choreographers like Salman Khan and Punit Pathak, will be judging them now. The choreographer said: "It will be a challenge for them. I have seen them dancing. They have to show me something which I haven't seen before."
For Madhuri Dixit, the amount of energy which the contestants put into a performance is important.
"For me it is what they put into it. How much they are enjoying and how they put their heart and soul into it," she said.
Veteran actor Dharmendra will also be seen in the first two episodes of the show.
"Dharam ji is the only actor who has a trademark dancing step and he will be immortalised for that," Karan said.