(1)Notwithstanding anything in Part XVII, but subject to the provisions of article 348, business in the Legislature of a State shall be transacted in the official language or languages of the State or in Hindi or in English:Provided that the Speaker of the Legislative Assembly or Chairman of the Legislative Council, or person acting as such, as the case may be, may permit any member who cannot adequately express himself in any of the languages aforesaid to address the House in his mother-tongue