Party sources said resignations of the ministers, which are being received by Union Agriculture Minister and NCP president Sharad Pawar, are likely to be forwarded to the Chief Minister Prithviraj Chavan in the evening, who will then forward them to the Governor.
The swearing-in of new ministers may take place tomorrow.
In a surprise move on Friday night, Pawar asked all the 20 ministers of his party to submit resignations, in an exercise apparently aimed at image make-over ahead of the 2014 elections.
The party has indicated that new faces will be inducted.