ISLAMABAD - PML-N on Monday quit the ruling coalition over differences on the reinstatement of judges and decided to sit on the Opposition benches in the National Assembly. "We have taken this decision after we failed to find any ray of hope and none of the commitments made to us were fulfilled by PPP Co-Chairman Asif Ali Zardari", PML-N Quaid Nawaz Sharif said while addressing a Press conference. Chairing a joint meeting of party's Central Working Committee and parliamentary party in the National Assembly, he said, "This situation has forced us to withdraw our support and sit on the Opposition benches." However, he vowed to continue struggle for the restoration of judges and genuine democracy in Pakistan. Nawaz Sharif said that his party had joined the coalition with full sincerity but promises were made and broken repeatedly thus forcing the PML-N to take the decision to quit. When asked about the future of PML-N led government in the Punjab, Nawaz Sharif said that his party would promote politics based on good values, principles and ideology instead of repeating politics of confrontation of 80s and 90s. He made it clear that his party would not be a part of any effort that was aimed at causing damage to the PPP-led central government. He added that the opposition leader in the National Assembly would be from the majority party on opposition benches. Answering to another question as to how would his party react if PPP-led government restored all the deposed judges before or shortly after the presidential election, Nawaz Sharif described it a hypothetical question. He reminded that when his party was in talks with PPP Co-Chairman Asif Ali Zardari ahead of the coalition decision to impeach Musharraf, eight deposed judges of Sindh High Court were being restored and his party objected and got that tricky process immediately stopped. ONLINE adds: Mian Nawaz Sharif said that his party had forged alliance with PPP for supremacy of constitution, protection of democratic norms and complete restoration of judges. "We are not power hungry rather we are supportive of those who deserve for it. Breaking the promise is repeatedly prohibited in the Holy Quran and Hadith and this factor has led to break up of alliance. We were not even taken on board on the issue of presidential candidate", he said. Chief Minister Punjab Mian Shahbaz Sharif, Justice (R) Saeeduz Zaman Siddiqui, Ghaus Ali Shah, Raja Zafarul Haq and others were also present on the occasion. Nawaz Sharif said the PML-N and PPP embarked on joint journey of harmony for supremacy of constitution and democracy with 13th constitutional amendment in 1997. "Meetings with Benazir Bhutto continued during the period of exile. As a result, the Charter of Democracy came into being. Both the parties continued to go side by side prior to and after elections. Our ministers took oath before former president Pervez Musharraf on the insistence of Asif Zardari", he said, adding that it was resolved during this period that judges would be restored within 30 days through a resolution and executive order but PPP insisted for restoration of judges through constitutional package. Afterwards, Asif Zardari in his interview with TV channel termed his statement as political statement saying agreements are not Quran or Hadith, the PML-N chief said. Nawaz Sharif further said it was again agreed upon during a meeting in Dubai that judges would be reinstated. "I made announcement in Lahore in this respect", he added. But PPP again backtracked from its promise. "I remained under tremendous pressure from people, civil society, political circles and from within my party. But in the national interest I deemed it better that alliance should stay", he remarked. "In this regard I wrote a detailed letter to Asif Zardari through which he was informed about the whole situation. But these efforts could not materialise", he maintained. Nawaz Sharif further told an agreement was reached in the talks held in Islamabad from August 5-7 and every page of agreement bore my and Asif Zardari signatures. The entire action plan took place as per time line. This also bore signatures of both of us. It was resolved deposed judges would be reinstated within a day after resignation or impeachment of former president Musharraf. Therefore, all the judges should have been restored by August 19, he added. But the situation runs contrary to it, he told. It could not happen even after a week and Asif Zardari sabotaged the matters by saying agreements are not Quran or Hadith. PPP once again deviated from its accords with PML-N by nominating its own Presidential candidate though it was decided in the article 4 of the agreement that in case of impeachment or resignation of President the Presidential candidate would be selected by mutual consultation, the PML-N leader added. "The manifesto of PML-N is to ensure the country's progress by eradicating poverty and huger, and by establishing law and order in the country," he added. He said that PML-N had decided to quit the coalition after consulting civil society, lawyers, CEC and parliamentary party, and has decided to play a positive role of effective opposition by striving for the restoration of judiciary, declaration of 12th October act as illegal and the revival of 1973 constitution in its original form.  "We avoid conflict politics and do not want to create problems for PPPP in the federation," he added.