The ousted prime minister said that while he respects the court's decision, he would be challenging it in a review petition to be filed shortly.
Kulsoom Nawaz on late Thursday signed nomination papers as PML-N has chose to field former first lady for by-poll in NA-120 Lahore-III, fell vacant after disqualification of former PM Nawaz Sharif.
Sharif planned to spend at least two nights along the Grand Trunk Road, the main road from Islamabad to Lahore, in his first public appearances since July 28, when the country's Supreme Court disqualified him from office for concealing assets.
Sharif was the 15th prime minister in Pakistan's 70-year history - roughly half of which has been spent under military rule - to be ousted before completing a full term.
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According to Malik Mohammad, a spokesman in Punjab where Lahore is the provincial capital, security arrangements for Sharif's rally have finalized.
Sources in the Pakistan Muslim League-Nawaz (PML-N) party said that some of the senior party leaders were concerned about the security of Sharif.
Speaking on the eve of his departure, Sharif said that Pakistan had only ever seen "a crippled democracy". He asked the people to make a pledge to guard their mandate so that elected representative are not removed through undemocratic ways.
Stressing upon the preparation of a new charter of democracy, which could include subjects like ethics and economy, he said that all political parties should be included in the charter.
"As the rally gets closer to Lahore, it will surpass all other jalsas of the past. Is this not an insult to your vote?" he said. The general elections in Pakistan are due next year. Sharif also announced that he respects the decision despite serious reservations.