Opposition to the two-nation theory came from both nationalist Muslims and Hindus, being based on two concepts. The first is the concept of a single Indian nation, of which Hindus and Muslims are two intertwined communities. The second source of opposition is the concept that while Indians are not one nation, neither are the Muslims or Hindus of India, and it is instead the relatively homogeneous provincial units of the Indian subcontinent which are true nations and deserving of sovereignty; this view has been presented by the Baloch, Sindhi, Bengali, and Pashtun sub-nationalities of Pakistan, with Bengalis seceding from Pakistan after the Bangladesh Liberation War in 1971 and other separatist movements in Pakistan are currently in-place.