The billionaire will be present at San Siro to observe the club in which he has purchased a 70 per cent stake and then embark on a rebuilding programme
Thohir, who now owns a 70 per cent stake in the club, will be present at San Siro when the Nerazzurri host Sampdoria in Serie A before embarking upon a series of meetings with key senior figures.
"Will I see Mazzarri? Possibly yes, at the Inter offices. Yes, maybe some of the discussions will be about that [transfer plans]," he told the club's official website.
"I have some meetings from 14:00 to 19:00 today, and I'll have dinner with Mr Moratti and the family.
"Tomorrow I'll have more meetings but the most important thing of all is Sunday: it's my first game. And hopefully we'll have a good game."
Inter sit in fourth place in Serie A ahead of their clash with Sinisa Mihajlovic's side, having accrued 26 points from their first 13 games.