Nainggolan has played just five times for his national team since making his debut in 2009.
"I have played for all the national youth teams," he told SportMagazine. "But I have not heard anything yet.
"I honestly think I deserve to go to the World Cup. I don't bear any sort of grudge against [Coach Marc] Wilmots.
"I'm just sorry that I haven't been able to show him my worth.
"Belgium has a strong group of midfielders, and we can't all go the World Cup."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball