The 32-year-old, who is currently seen on "Qubool Hai", was admitted to a hospital on Friday.
"Upon his return from South Africa, Karanvir was unable to shoot for more than three hours as he started feeling weak. On consulting a doctor and subsequent medical tests, we realised he is suffering from dengue and needs to be hospitalised immediately," Teejay said in a statement.
Karanvir is so passionate about his work that when he was told about the diagnosis he got upset.
Teejay added: "He is a workaholic actor, he was continuously shooting for 'Qubool Hai' besides two other shows. The stress of shooting long hours and current dengue plaguing the city affected him with serious consequences.
"When he learnt he is suffering from dengue, he said 'I hate to be in the hospital, my show's TRP will suffer if I won't be there'," she added.
