Those people who are unsuccessfully trying to limit the Zulfikar Ali Bhutto (ZAB) and Benazir Bhutto (BB) only to Pakistan Peoples Party (PPP), they are sadly mistaken. They are forgetting the fact that ZAB as well as BB both were Prime Ministers of Pakistan and they had rendered valuable services to the nation without any discrimination by enhancing its image internationally. Their services were not limited only to their Party (PPP) or any one province. Being national heroes, their services must be acknowledged by the whole nation and not only PPP or one province. Those who are opposing the construction of monument at Islamabad of BB, they are in fact trying to limit our national leader to only one Party for their vested interests. Such efforts must be condemned at all levels. MOHAMMAD KHAN SIAL, Karachi, October 21.