The rejig exercise is scheduled to be held at 6 pm at Rashtrapati Bhawan.
Gangwar, who held the position of minister of state (independent charge) for labour and employment resigned from his post early this morning.
When asked whether he has resigned from the post of labour minister, Gangwar answered in the affirmative. “Yes I have resigned,” he told news agency PTI.
He, however, said he is not aware what his new role in the government will be.
This will be the first reshuffle in the council of ministers by Prime Minister Narendra Modi since he assumed charge for a second term in May 2019.
Ahead of the cabinet expansion on Wednesday evening, ministerial probables met Prime Minister Narendra Modi at his residence.
The Prime Minister is expected to bring in young faces and give representation to various social groups and regions in the reshuffle.
(With inputs from agencies)