The event, taking place from December 4 to 6, will see the 39-year-old Irish actor and DJ taking special sessions, signing posters and speaking to fans at the event.
Nairn, famous for his one-word dialogue 'Hodor' in the series, said, "I am really excited and looking forward to attend Indian Comic Con in Delhi. I can't wait to meet all the fans of 'Game of Thrones', will see you all soon in December!"
Other special guests coming to the event are Rob Denbleyker, author of 'Cyanide and Happiness'; Ty Templeton and Dinesh Shamdasani.
The show will feature over a 250 exhibitors, including artists, writers, merchandisers and creators from across India and abroad.