Kathmandu, Feb 9 (IANS) : Former Prime Minister and Nepali Congress President Sushil Koirala died late Monday. He succumbed to Pneumonia at 12.50 a.m, Koirala 's private secretary Atul Koirala told the Kathmandu Post.
Koirala was suffering from Chronic Obstructive Pulmonary Disease.
Koirala was not able to attend formal events on Monday.
Meanwhile, Nepali Congress postponed its electoral process prior to the General Convention, General Secretary Prakas Man Singh said.