( 1 ) -THE validity of the first proviso to section 13 (1) (b) of the Andhra pradesh Public Libraries Act, 1960 (hereinafter referred to as "the Act") is questioned in this writ petition.

( 2 ) THE first petitioner is an advocate and is the President of the Indian Rationalist Association, Hyderabad; and the second petitioner is the Secretary of the indian Committee for Cultural Freedom hyderabad and also Joint Editor of a cultural Quarterly magazine called "prasarita". The second petitioner is also a member of the State Centrallibrary. The petitioners aver that both of them are regular visitors to the City central Library and other Public Libraries in the city for purposes of reading books and magazines and are keenly interested in acquisition and dissemination of knowledge for due, proper and effective exercise of their fundamental right to free speech and expression guaranteed under Article 19 (1) (a) of the Constitution of India they further aver that it is a part of their avocation and duty to circulate and distribute the literture published under the auspices of the Indian Committee for cultural Freedom, the Indian Rationalist association and other allied and associ