Bangla Pokkho movement

Prima Facie, it would look like any regional linguistic movement, like Shiv Sena's Marathi Maanoos (Person) and Marathi Asmita (Pride) movement, or Tamizh Pride that Dravidian Parties project. But if we scratch the surface we will observe that it is a very smartly devised separatist movement under the guise of linguistic regionalistic sub-nationalism.