It is a known fact that Sunil Grover had some issues with the producers of Comedy Nights with Kapil, hosted by his good friend Kapil Sharma, due to which he had to leave the show breaking his contract.
When the news broke out that Sunil Grover is quitting the show and there will no longer be a "Gutthi" on the popular Colors comedy show, Comedy Nights With Kapil, the immediate response from everyone was to come to a conclusion that Kapil Sharma and Sunil Grover have had some misunderstanding.
Also, with Kapil Sharma saying, he will get Sunil back on the show, there was talks about the chance of him coming back on the show some time soon. But with the current news about Sunil doing his own show, the hopes of him returning on Comedy Nights seems meek.
Keeping Sunil Grover issue aside and coming back to "Gutthi", Viacom 18 has issued a public notice to warn Sunil Grover against taking his alter ego on the show elsewhere. They said, "Take notice that Viacom18 has sole, exclusive, absolute and unlimited ownership rights of all the intellectual Property rights of the Artist associated with the program including the rights in the format of the program."