On Monday Pakistan's ex-premier Nawaz Sharif said that he will not accept President General Pervez Musharraf even as a civilian ruler.

As he was left to fill his nomination papers on Monday in eastern city of Lahore for the parliamentary elections on January 8 he said: "I will not become prime minister if Musharraf is president,” DPA reports.

“We don't want to boycott elections, but if you push someone to the wall ... what options are left? We demand restoration of all judges, lifting of curbs on media, lifting of emergency before elections,” he added, Washington Post quotes.

Supporters in the courtroom were chanting “Prime Minister Nawaz Sharif!”

The statement came hours after country's Attorney General Malik Mohammad Qayyum declared that he doesn’t think that Sharif would contest the parliamentary elections due to his past criminal convictions.

He said: “As the election law stands today it is highly doubtful that Nawaz Sharif can contest elections."

It could be banned due to Sharif’s sentence to life for corruption and treason charges following his ouster in a coup in 1999 by Musharraf. In 2000 he was forgive and sent to exile by Musharraf.

The exile ended on Sunday when Sharif landed at an airport in eastern city of Lahore returning from Saudi Arabia.

At the airport he was welcomed by thousands of supporters who also greeted him along his route in a slow-moving motor caravan that reached its destination, a shrine of a Sufi saint, on Monday morning.

At the airport he told the crowd “Pakistan was not created for dictators or emergencies. It was created for democracy and the rule of law. I am here to play my role in ridding the country of dictatorship and bringing back the rule of law.”

Sharif’s return may put pressure on Musharraf to lift the emergency rule, if he gets support from ex-premier Benazir Bhutto who welcomed his arrival: "We welcome his return to the country; it will contribute positively to the political scene,"

All Parties Democratic Movement, an opposition movement of which Sharif’s Pakistan Muslim League-Nawaz (PML-N) is a part, gave the government a deadline until November 29 to lift the emergency rule or else he will face a boycott at the elections.