Jaitley was earlier this month admitted for a week to the same hospital and underwent a planned diabetes management surgery.
An official source said the minister was expected to be discharged either later Monday or on Tuesday.
Jaitley was earlier Monday scheduled to launch an updated version of the income tax department website that will be a single window for all its online services. The programme now stands cancelled, the source added.
The minister missed the two-day meeting of G20 finance ministers and central bankers at Cairns, Australia, that concluded Sunday.
Sixtyone-year-old Jaitley also holds the defence portfolio.