BJP veterans have attacked party leadership for party's defeat in Bihar Assembly polls. <br/><br/>In a joint statement,L K Advani, Murli Manohar Joshi, Shanta Kumar and Yashwant Sinha have said that Bihar results show that no lesson has been learnt from the fiasco in Delhi assembly elections. <br/><br/>They said the principal reason for Bihar debacle is the way the party has been emasculated in the last year. <br/><br/>The leaders also targeted BJP leadership for saying that everyone is responsible for the defeat and said it reflects that no one is responsible. <br/><br/>They said such comments also show that those who would have appropriated credit during the party's victory are bent on taking responsibility for drubbing. <br/><br/>The veterans added that a through review must be done for the reasons of defeat mentioning that it must not be done by very persons who have managed and responsible for the poll campaign in Bihar.