Four university students remain missing since they were allegedly picked up by plainclothes men in the capital's Farmgate area on Saturday, the day before national election.

Their families yesterday held a press conference at Crime Reporters' Association Bangladesh, demanding safe return of the youths.

The missing are: Abu Khaled Mohammad Jabed, 25, a third year student of Bangla at Asian University; Borhan Uddin, 26, English student at Stamford University; Rezaul Khalek, 24, final year student of Pharmacy at Manarat University; and Syed Maminul Hasan, 27, former student of a Unani Ayurvedic Medical College.

“We are very anxious about their fate, as we have been out of contact with them for two days,” said Jabed's brother-in-law Yeasin Karim at the press conference.

He urged law enforcers to rescue the youths or to produce them before the court if they were detained for any crime.

Some plainclothes men identifying themselves as law enforcers dragged them out of a bus in Farmgate on their way home in Mirpur-1 after shopping at Aziz Super Market, Yeasin said quoting a friend of theirs who was also in the bus but escaped detention.

“We contacted local police stations and other wings of law enforcement agencies but all denied picking Jabed up,” he said.

The families drew attention of national and international human rights organisations to be vocal for their release.

Contacted, Abdul Baten, additional commissioner (detectives) of Dhaka Metropolitan Police said they did not detain the youths.

Mufti Mahmud Khan, Rab's Legal and Media wing director also said they did not carry out any drive in Farmgate on that day.

International media widely covered yesterday's national election that saw deadly clashes and accusations of vote rigging.

In a news report, the Associated Press said it received more than 50 calls from people across Bangladesh, who identified themselves as opposition supporters.

They complained of intimidation and threats, and being forced to vote in front of ruling party men inside polling booths, it mentioned.

"Hasina's use of the state machinery to subjugate the opposition virtually ensures her electoral victory," Sasha Riser-Kositsky, a South Asia analyst for the New York-based Eurasia Group, told AP.

Minutes before the polls opened, a BBC correspondent saw filled ballot boxes at a polling centre in Chittagong city. The presiding officer declined to comment.

Only the ruling party's polling agents were present there and several other polling centres in the port city.

BBC's South Asia Regional Editor Anbarasan Ethirajan said if the opposition's claims of widespread vote rigging are proved, then it will likely to raise questions over the credibility of the election process and the legitimacy of the new government, according to a BBC report.

The Guardian in its report headlined “Bangladesh opposition reject 'farcical' election and demand new vote”, mentioned that dozens of candidates pulled out, claiming the ruling Awami League rigged the country's first contested election in a decade.

The Election Commission told Reuters that it was investigating allegations of vote rigging coming from across the country.

“Allegations are coming from across the country and those are under investigation,” SM Asaduzzaman, a spokesman for the EC, told the news agency.

The Economic Times of India reported that the voting in a tense election to choose a new government in Bangladesh ended amid allegations of manipulations by ruling party men.

The Times of India highlighted the introduction of EVMs in six parliamentary constituencies for the first time in a general election, a move which received mixed responses from the voters amid reports of glitches at some booths.

Awami League General Secretary Obaidul Quader today said BNP has failed to plunge the December 30 national election into controversy even after knocking at the doors of its foreign friends.

“They (BNP) wrote letters to different countries to make the election questionable but their motive has gone in vain,” Quader, also the minister for Road Transport and Bridges, told reporters after visiting construction site of the second Kanchpur Bridge on Dhaka-Chattogram and Dhaka-Sylhet highways in Narayanganj’s Sonargaon upazila.

BNP also completely failed to ensure momentum of their anti-government movement as people did not take to the streets by responding their call, the Awami League leader said.

Replying to a query about BNP’s decision to refrain from participating in the upcoming upazila elections, the minister said no political parity can sustain without taking part in election.

He said the heads of different countries including UK and Switzerland welcomed Prime Minister Sheikh Hasina following the formation of government under her leadership for the fourth time.

Claiming that people would not throng the streets responding to the BNP’s call, Quader said BNP is engaged in negative politics and thus it will lose its foreign friends as well as the trust of the countrymen.

Awami League today congratulated the Election Commission for holding a “wonderful, free and fair national election”.

An Awami League delegation led by Prime Minister Sheikh Hasina’s Advisor HT Imam also conveyed a message to the Chief Election Commissioner KM Nurul Huda saying that people will have more confidence on the EC after the national election held on December 30.

“We came to the commission to felicitate them on completing a wonderful election,” HT Imam told reporters after holding a meeting with the CEC at Nirbachan Bhaban in Dhaka’s Agargaon.

"No other elections of the past were so disciplined and well coordinated and the EC performed its constitutional duties wonderfully," he said.

“People will have more confidence on the EC now. The way we are getting recognition from aboard after the election, which has made us proud,” he added.

When his attention was drawn on Jatiya Oikyafront and BNP’s demand of fresh election under neutral government, HT Imam said, “New election is not possible. Demand of caretaker government is an old one. So discussion on that issue will not be fruitful.”

The EC certainly will take necessary steps if there have been any irregularities during election, he further said.

Urging BNP to find out the reasons behind its defeat in the last general election, Prime Minister Sheikh Hasina yesterday said a party that failed to mobilise people for a movement cannot win public support in the election fray.

“BNP has many reasons for their defeat in the December 30 election. One is their failure to wage anti-government agitation involving people,” she said.

The prime minister was addressing a discussion marking Bangabandhu's Home Coming Day from Pakistani prison on January 10, 1972 after Bangladesh got independence.

Bangladesh Awami League Central Working Committee organised the discussion at Bangladesh Krishibid Institution.

Prime Minister Sheikh Hasina, also President of the Awami League, was in the chair while party leaders Amir Hossain Amu, Tofail Ahmed, Matia Chowdhury Sheikh Fazlul Karim Selim, Mahbubul Alam Hanif, Jahangir Kabir Nanak, Abdur Rahman, AFM Bahauddin Nasim, AKM Rahmatullah and Shah Alam Murad, among others, took part in the discussion.

Party leaders Dr Hasan Mahmud and Aminul Islam conducted the meeting.

Other reasons for BNP's debacle in the election is their misdeeds in 2013, 2014 and 2015, the prime minister said, adding that people didn't forget their mayhem when they torched more than 3,900 transports, burnt more than 3,500 people of whom more than 500 succumbed to injuries.

“Women, children, elderly persons, students and even trees could not escape from their attacks. So, how can they expect that people will vote for them?” she asked.

The Prime Minister said choosing a fugitive convict to head the party is also a major cause for BNP's defeat in the election.

“As their main leader is serving in prison for stealing an orphanage's money, her son was made acting chairperson, who was convicted in a number of cases including a case for smuggling 10 truckloads of arms and ammunition, the 21 August grenade attack and a money laundering case where FBI has given deposition against him.

“Was there no leader in BNP except a convicted person to be made their chairman?” Sheikh Hasina asked.

She said trading with nomination is another major cause of BNP's disaster in the election.

“They [BNP] put their nomination in auction and the highest bidder got nomination. Many of them met with me and spoke of their anguish,” she said.

Above all, the prime minister said BNP has given nomination to 25 leaders of Jamaat the entity of which was declared illegal by the country's highest court.

She said, “People of Bangladesh now believe in the spirit of the Liberation War and they will never vote for any war criminal.”

Sheikh Hasina said the Father of the Nation has liberated the country, but people of Bangladesh suffered immensely for 29 years from 1975 to 1996 and from 2001 to 2008 as anti-liberation forces ruled the country during that time.

“People of Bangladesh found prosperity only when Awami League was in power as the party is guided by the principles of Bangabandhu,” she said, adding that “economic emancipation of the people is our main goal and we want to establish peace and security in public life.”

The prime minister said Awami League had framed its election manifesto aimed at making Bangladesh a developed and prosperous nation in South Asia.

She said post 1975 rulers had tried to thwart out all achievements of Bangladesh by killing Bangabandhu on August 15, 1975.

Bangladesh could not go ahead because of their conspiracy and failure.

During the discussion, Sheikh Hasina expressed gratitude to the countrymen for casting their vote for Awami League and to the professionals for overwhelming support in the election.

She said next five years would be a hard time for her party as the government must continue the pace of development and take forward Bangladesh toward prosperity as pledged by it.