"I believe quite a few want to run their business plans by me,'' the daily Mumbai Mirror quoted Khan as saying in an interview published on Monday.
"A few of the participants are in touch with my secretary. They have been sending e-mails to my office as well,'' Khan said.
One of them even wants to direct a film, he said.
Khan, 41, replaced the venerated Amitabh Bachchan as host of "Kaun Banega Crorepati'' - based on "Who Wants to be a Millionaire'' - in January after the latter fell sick and opted out of the program.
The TV program offers a cash reward of Rs. 2 crores, for correctly answering 15 general-knowledge questions.
Khan said he didn't mind people helping out, but that "as for proposals for working together, I don't know what the future holds for me.''
His game show is scheduled to go off the air this week and likely to resume broadcast later this year.