The guest list for the dinner included party chief Amit Shah, ministers of NDA cabinet and general secretaries of the parties among others.
Sources said PM Modi was to discuss the status of different government schemes - and the focus was to be on Tripura, Meghalaya and Mizoram, Madhya Pradesh, Chhattisgarh, Rajasthan - where assembly elections are slated to be held this year and the next.
The group was also expected to discuss the means of increasing the party's appeal to the millennial voters. Estimated to be more than 2 crore, these new voters will comprise a significant chunk of the electorate.
Young voters and woman have been a key factor in the party's victories in and since the 2014 general elections.
The party is planning to launch a mobile app called the "Millennium Vote Campaign" on January 18. While the app is meant to ease the process of getting voter ID cards for first-time voters, the party also hopes to expand its scope as well as find other means to carry its message to young voters.
In his first radio address of the year, PM Modi had stressed on the importance of "new voters". "We welcome those born in the 21st Century to the democratic system as they will become eligible voters," PM Modi had said on his last Mann ki Baat radio programme, adding that their vote will become the "foundation of a new India".