Constitution of India, 1949
120. Language to be used in Parliament.-
(1) Notwithstanding anything in Part XVII, but
subject to the Article 348, business in Parliament shall be transacted in Hindi
or in English: Provided that the Chairman of the Council of States or Speaker
of the House of the People, or Person acting as such, as the Case may be, may
permit any member who cannot adequately express himself in Hindi or in English
to address the House in his mother tongue.
(2) Unless Parliament by Law otherwise
provides, this article shall, after the expiration of a period of fifteen years
from the commencement of this Constitution, have effect as if the words
"or in English" were omitted there from.