"There was no shoot scheduled for today but the art department had work to do on the sets. But it was delayed as they could not enter the sets because of the leopard being there," Kannan Iyer, who is directing the film, said.
Filmcity is in Goregaon, surrounded by forest. The uninvited guest was later apparently shooed away.
Co-produced by Vishal Bhardwaj and Ekta Kapoor, the film stars Emraan Hashmi, Konkona Sen Sharma and Kalki Koechlin in the lead roles.