The final preparations for the Constituent Assembly (CA) by-election scheduled for tomorrow (Sunday) have been completed, the Election Commission (EC) said on Saturday.

The voters in Kathmandu-2, Chitwan-4, Kailali-6 and Bardiya-1 are casting their ballots on Sunday.

The by-elections are being conducted as Madhav Kumar Nepal, Sushil Koirala, Sher Bahadur Deuba and Bamdev Gautam won the CA election held on November 19 from two constituencies.

The EC said that the voters would cast the votes through the electronic voting machines and all the officials have been given trainings for the same.

According to the EC, a total of 3,520 officials would be deployed in the four constituencies to conduct the by-election in a free, fair and fearless manner.

All the election materials and human resources needed for the by-election have been supplied to the concerned voting centres and the entire preparations needed for prior to elections were completed, Chief Election Commissioner Nilkantha Upreti said.

The EC has estimated the total expenses of Rs 110 million for the by-elections in four constituencies.

Nepal Police and Armed Police Force have been mobilised for the security.