The 69-year-old novelist took to Twitter to praise the actor on the seventh anniversary of the Karan Johar-directed film.
"My Name is Khan and I am not a terrorist. Congratulations @iamsrk for the 7th anniversary of this wonderful movie!" wrote Paulo.
The Alchemist author also posted a screenshot from his Facebook page, where he also wrote that the 2008 movie was only the time he had watched any of Shah Rukhs acts.
The image read, "His first (and only) movie that I watched (this year, even if it was released in 2008) was My Name is Khan. And not only was the movie excellent, but SRK deserved an Oscar if Hollywood was not manipulated. He kindly offered to send the other titles - as you probably guess, it is not easy to find them in Switzerland."
Shah Rukh too tweeted saying that it was sad that such films are "still relevant" and was grateful to the cast and crew for giving him such a great film.
"Its kinda sad too that My Name is Khan is still relevant. But thanks Karan, Ravi, Kajol, SEL, Shibani, Niranjan, Deepa, Jimmy & all cast/crew for a special film," the 51-year-old star wrote.
Director Karan wrote on Twitter, alongwith a still from the movie, "Thank you Rizvan.... for spreading your love ...your message....your innocence..... #7YearsOfMyNameIsKhan."
He also thanked Paulo for his words of appreciation. "So honoured you liked our film this much..." wrote Karan.
(Inputs from PTI)