In Indian National Congress Bharath Matha Stands for Representing the Country(India).Not for Representing any Religion or Group.The Saree Which Bharath Matha Wears is White and the Tricolour of Indian Flag is added in the side of that Saree.The White Saree Represents Congress,and the Tricolour represents the Whole Nation.
The Bharath Matha of Indian National congress Holds the Indian Flag Which Shows that She is Representing The Whole Country,Not a Religion or Cast or Race.
(Click on the Image to See it in Real Shape)