The actor, who shot for the two shows continuously for almost 65 hrs, was recently rushed to a Mumbai hospital after he fainted on the sets of the STAR One dance reality show.
According to the doctors, he is suffering from typhoid and has been advised at least three weeks of bed rest.
Confirming the news, Sushant said: "Yes. I have got typhoid. Doctors have recommended three weeks' complete rest."
Sushant may not shoot for "Zara Nach Ke Dikha" following his illness, but he will continue shooting for "Pavitra Rishta" where he plays the lead role.