There was a time when BJP claimed it had discipline and was a party with a difference. Later on the differences among members became public knowledge and people referred to it as party with differences. As years passed BJP started to resemble Congress.
Like Congress, BJP does not have inner-party democracy. Decisions are imposed from above. Leaders in Delhi decide who should be chief minister or leader of opposition in Legislative Assembly. That is like Congress high command. MLAs defying central leadership, as happened in Karnataka, is an exception.
BJP did not associate with Gandhi except for a time when it talked of Gandhian socialism which was soon abandoned. BJP leaders were not known to fast. Raj Ghat was not a place where one expected BJP members to be present. That changed when BJP members had one day fast at Raj Ghat. Sushma Swaraj dancing to a song led to a controversy. She claimed it was a patriotic song.