The director was admitted to Mumbai's Lilivati hospital after falling ill over the weekend.
Breaking the news, Bollywood trade analyst Taran Adarsh revealed: "Yash Chopraji hospitalised."
He later added: "Yash Chopraji diagnosed with an attack of dengue. He has been kept under observation. He is feeling much better and should be home soon."
The 80-year-old announced his retirement from film direction last month.
Chopra was the recipient of an Honorary Doctorate at SOAS, University of London, in July 2010.
His Shah Rukh Khan, Katrina Kaif and Anushka Sharma starrer Jab Tak Hai Jaan is released on November 13.
Watch the Jab Tak Hai Jaan promo below: