Jaitley is scheduled to present the last full budget of the current NDA government on February 1.
Minister of State for Finance Shiv Pratap Shukla and other senior ministers of the ministry also participated in the 'Halwa Ceremony' at the North Block.
"The Union Finance Minister, Shri @arunjaitley at the Halwa Ceremony with MoS (Finance), Shri @BJPShivPShukla & Senior Officers at North Block in New Delhi today and thereby
launching the formal printing of different documents relating to the Union Budget 2018-19," the finance ministry said in a tweet.
As part of the ritual, 'halwa' is prepared in a big 'kadhai' (large frying pot) and served to the entire staff in the ministry.
At the Halwa Ceremony to mark the formal printing of the Union Budget 2018-19 documents. pic.twitter.com/cmQVNQbpVl— Arun Jaitley (@arunjaitley) January 20, 2018
They are not even allowed to contact their near and dear ones through phone or any other form of communication, like e-mail.
Only very senior officials in the finance ministry are permitted to go home.