As per the Government's notification, Schools in Punjab can only use textbooks which have been aligned with the Single National Curriculum and have their respective No Objection Certificates (NOCs) issued by the Punjab Curriculum and Textbook Board (PCTB). Siddiqui Book Company (SBC) will only entertain textbook orders in or for Punjab for Titles for which the requisite NOCs have been obtained; this needs to be ensured by the Purchaser and for which SBC can take no responsibility.