ISLAMABAD: The Senate is expected to take up the bill on the delimitation of constituencies today after it failed to do so on last three previous sessions due to low strength.

The house of 104 needs a two-thirds majority to pass the bill.

Sources said that the government and Pakistan Peoples Party (PPP) failed to reach on a mutual ground on the issue. As many as 69 members are required to be present in the session today, however, PPP leadership has not issued any directives to ensure its members presence in the session.

Senate session is expected to commence at 4 pm today at Parliament House.

The Constitutional Amendment Bill, 2017 pertains to the fresh delimitation of constituencies in line with the provisional results of the latest census in light of the general elections next year.

The upper house, however, managed to pass the same day the Elections Amendment Bill, 2017, related to Khatam-e-Nabuwat clauses for voters, after the National Assembly (NA) did the same on Thursday.

According to the new delimitation, Punjab's seat share in the National Assembly will decrease by nine seats, while Islamabad will get one more seat, Khyber Pakhtunkhwa five and Balochistan three more.

NA seats for FATA and Sindh will remain unchanged.

Earlier, NA Speaker Ayaz Sadiq had said after chairing a meeting of parliamentary parties that the total NA seats will remain 272 but there would be a change in the allocation of NA seats for the provinces.

On November 13, the Council of Common Interests (CCI) approved delimitation of new constituencies on the basis of provisional results of Population Census 2017, paving a way for timely conduct of next general elections.