Jatiyatabadi Chhatra Dal (JCD) General Secretary Nasir Uddin Nasir on Tuesday alleged that Dhaka University Central Students' Union (DUCSU) Vice-President Shadik Kayem might have been involved in crude bomb explosions on the university campus.

"We believe he [Shadik Kayem] might have links to the crude bomb explosions. In 2014-15, Shadik Kayem was seen in Chhatra League processions aimed at suppressing the movements of the BNP and Chhatra Dal. He has an old connection. To preserve that connection, he is not standing beside the students," Nasir said.

He made the remarks while speaking to reporters in front of the Teacher-Student Centre (TSC) at Dhaka University in the afternoon.

Referring to what he described as Shadik Kayem's direct links with the banned Bangladesh Chhatra League in the past, Nasir alleged that Chhatra Shibir had previously supported the activities of the Chhatra League through covert politics and that its leaders and activists were still supporting its violent activities.

He also criticised the DUCSU leader for spending time with his family in response to an invitation from what he called terrorist leader Saddam (BCL president Saddam Hossain), describing it as shameful, saying students would not accept such a position after the mass uprising.

"We believe that while the country is moving forward following the verdict delivered by the people in February, Shadik Kayem and others are making misleading statements. Taking advantage of this, Chhatra League is exploding crude bombs," the JCD leader said.

Alleging that Shadik Kayem had been elected illegally, he questioned whether the DUCSU vice-president had fulfilled even his minimum responsibilities over the crude bomb explosions on the campus in recent days.

Meanwhile, in a post on his verified Facebook account in the evening, Nasir alleged that Chhatra Shibir had remained silent during the July uprising so that none of its leaders would be harmed if the Chhatra League remained in power.

"Even now, they are maintaining the same silence so that they are not harmed if the Chhatra League returns. They will approach the Chhatra League and say that they did not obstruct its return in any way. Then they will remain safe under its shadow," he wrote.