Islamabad: More than 1,000 foreign observers from all over the world will be monitoring Pakistan's general elections amid growing complaints of rigging and doubts on the impartiality of the caretaker government.

A US delegation, led by Congresswoman Sheila Jackson Lee, has arrived on Sunday in Islamabad. A large number of observers from other countries have made the elections the most monitored polls in the history of the country.

The US observers have been actively visiting different party leaders in the federal capital. On Sunday morning,Jackson Lee met with Syed Mushahid Hussain, secretary general of the Pakistan Muslim League - Qaid-E-Azam (PML-Q), and discussed different aspects of the election process.

Later, she went to the People's Secretariat and met with the leaders of Pakistan People's Party (PPP). Jackson Lee is from Houston, Texas, which has the fourth largest Pakistani-American community in the United States.

Jackson Lee is also co-chairperson of the Congressional Pakistan Caucus. Talking to the press, she said Pakistan has been going through the process of historic elections that should be impartial, fair, and transparent.

An observers' delegation from the European Parliament has also arrived.

Meanwhile, Syed Mushahid Hussain said the current elections are the most monitored elections in the history of Pakistan. “Under strict observation, there in no question of rigging at all,'' he said.

He ensured that the elections will be fair. All parties must accept the result and if anybody has proof of rigging he may contact the Election Commission of Pakistan (ECP), he added.

Sources at the ECP on Sunday said the commission has received more than 2,000 complaints from candidates in different cities of the country.