PM Modi informed the MPs about the dinner meeting at the BJP Parliamentary Party meeting and said he was doing so on behalf of Mr Shah who had gone to Meghalaya to attend the swearing-in ceremony of Chief Minister Conrad Sangma.
Party sources said it will be an occasion for the MPs - 332 in total - to visit the headquarters at Deen Dayal Upadhyay Marg and interact with their leaders.
The party is keen to maintain the momentum for the crucial assembly polls in Karnataka, where the Congress is in power.
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.