"The negotiations following upon these demands resulted in agreement between the Hindus and the Muslims which is known as the Lucknow Pact. It may be said to contain two clauses. One related to legislation, under which it was agreed that :— "No Bill, nor any clause thereof, nor a resolution introduced by a nonofficial affecting one or other community (which question is to be determined by the members of that community in the Legislative Council concerned) shall be proceeded with, if three-fourths of the members of that community in the particular Council, Imperial and Provincial, oppose the Bill or any clause thereof or the resolution." The other clause related to the proportion of Muslim representation. With regard to the Imperial Legislative Council the Pact provided :— "That one-third of the Indian elected members should be Muhammadans, elected by separate electorates in the several Provinces, in the proportion, as nearly as might be, in which they were represented on the provincial legislative councils by separate Muhammadan electorates.""
January 1, 1970
https://en.wikiquote.org/wiki/Lucknow_Pact