The Senate on Friday passed the bill seeking to limit the disqualification of lawmakers to five years with retrospective effect, the Dawn newspaper reported.The move comes a day after Pakistan Prime Minister Shehbaz Sharif urged his elder brother Nawaz Sharif, the PML-N supremo, to return from London and lead the poll campaign of the party in the general election and become the premier of the nation for a record fourth time.A copy of the bill presented in the Senate on Friday included an amendment to Section 232 Qualifications and Disqualifications of the Election Act, 2017.