How many states in India are currently being ruled by the BJP and allies?

BJP and allies, who were in power in 21 states in April 2018, now control governments in 17 of the 28 states in India. Further, Congress and allies are in power in five states. Shiv Sena-NCP-Congress alliance's Chief Ministerial nominee Uddhav Thackeray will take oath as Maharashtra Chief Minister on Thursday.