By-elections are set to take place in 21 constituencies of the National and provincial assemblies across Pakistan, with preparations underway to ensure smooth polling processes.

According to the Election Commission of Pakistan (ECP), the training of returning officers, presiding officers, and data entry operators has been completed. The one-day training sessions for polling staff were conducted in seven phases, ensuring that over 4,500 staff members are fully prepared for their roles.

In total, more than 1,700 presiding officers will be appointed in five constituencies of the National Assembly, while over 2,200 presiding officers will oversee polling in 16 constituencies of the provincial assemblies.

The polling for the by-elections in these constituencies is scheduled to take place on April 21. The election commission has announced that campaigning for the by-polls would end on Friday midnight.

Elections will be held in the following constituencies of the National Assembly: NA-8 Bajaur, NA-44 Dera Ismail Khan, NA-119 Lahore, NA-132 Kasur, NA-196 Kambar Shahdadkot.

Elections will be held on these constituencies of Punjab Assembly: PP-22 Chakwal-cum-Talagang, PP-32 Gujrat, PP-36 Wazirabad, PP-54 Narowal, PP-93 Bhakkar, PP-139 Sheikhupura, PP-147 Lahore, PP-149 Lahore, PP-158 Lahore, PP-164 Lahore, PP-266 Rahim Yar Khan, PP-290 DG Khan.

Elections will be held on these constituencies of Khyber Pakhtunkhwa Assembly: PK-22 Bajaur, PK-91 Kohat.

Elections will be held on these constituencies of Balochistan Assembly: PB-20 Khuzdar and PB-22 Lasbela.