ABUJA: Nigeria on Sunday postponed parliamentary, presidential and state polls amid widespread organisational problems that have raised doubts over a crucial election period in Africa’s most populous nation.Legislative elections had already been postponed once, with the delay announced hours after the vote was to begin on Saturday as materials and personnel failed to arrive at a large number of polling stations.The new dates will now be April 9 for parliamentary polls, April 16 for presidential elections and April 26 for governorship and state assembly polls, electoral commission chief Attahiru Jega told journalists.Parliamentary polls were due to be held on Monday, while the presidential vote was previously set for April 9 and state ballots on April 16.”The commission has found that the o…