The 44-year-old director, who is riding high on the success of his two consecutive films- "Raanjhanaa" and "Tanu Weds Manu: Returns," was all praise for SRK.
"He is a gutsy actor. He always takes challenges. It is a delight to have him in the film. We both have liking for each other. We want to work together and we are on that process.
The 50-year-old "Dilwale" star will be seen essaying the role of a dwarf in the interesting love story and the director is planning to serve a decent dose of songs in the film.
"It (story) sounds it is just about dwarf but it is much more than that. It is a much taller film. It is a very entertaining and interesting love story. I will be fool if I have Shah Rukh Khan in my film and have no romance and songs," he said.
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Apart from direction, Rai is excited about his upcoming projects as a producer.
"We have 'Nil Battey Sannata' with Swara Bhaskar, 'Happy Bhaag Jayegi' starring Abhay Deol and Diana Penty and 'Manmarziyan' with Ayushmann Khurrana and Bhumi Pednekar.
All three are interesting films and I am excited about it. This is the kind of cinema I want to be involved with as a producer. I am enjoying the process," he added.