Father of lawyer Saiful Islam Alif, who was hacked to death during Tuesday's violence on the Chattogram court premises, yesterday filed a murder case against 31 named and 10 to 15 unidentified others.

Jamal Uddin lodged the case with Kotwali Police Station, Kazi Tarek Aziz, ADC (public relations) of the Chattogram Metropolitan Police, told The Daily Star.

Most of the accused are the dwellers of Sebak Colony in the Bundle Road area of the port city, the ADC said. So far, nine people were arrested in connection with the killing after scrutinising CCTV footage, he added.

According to the case statement, the attackers -- some named in the FIR -- armed with weapons such as machetes, tridents, and cleavers -- carried out a premeditated attack on Saiful while chanting slogans in favour for former ISKCON leader Chinmoy Krishna Das Brahmachari, who was arrested in a sedition case. Saiful was attacked on his way home.

The statement claimed that individuals affiliated with political organisations, including Chhatra League, Jubo League, and Awami League, either directly or indirectly instigated the murder.

It also mentioned that the plaintiff came to know that from Saiful's colleagues and local sources following his death.

On Tuesday, police, lawyers, and followers of Chinmoy, also spokesperson for Sammilita Sanatani Jagaran Jote, clashed when the followers blocked a prison van after a Chattogram court sent the former ISKCON leader to jail in a sedition case filed over disrespecting the national flag.

Chandan Das, a key accused in the murder case, was seen wearing a helmet with an orange T-shirt and a black pair of pants. He was carrying a sharp weapon and was seen hacking Saiful in the CCTV footage, said police.

Meanwhile, Saiful's brother Khan-e-Alam yesterday lodged another case accusing 115 people, including two local journalists of Chattogram, for attacking lawyers, vandalism, and exploding crude bombs on the court premises on Tuesday.

Among the accused, 70 are lawyers and two are journalists. Besides, 400-500 unidentified were sued under the Explosive Substances Act.

With the two new cases, a total of five cases have so far been lodged with Kotwali Police Station over the violence and killing.

Court sources said senior lawyer and former president of Mahanagar Puja Udjapan Parishad Chandan Kumar Talukdar, Bangladesh Hindu-Bouddha-Christian Oikya Parishad General Secretary of Chattogram unit lawyer Nitai Prashad Ghosh, Mahanagar Puja Udjapan Parishad acting secretary lawyer Nikhil Kumar Nath, lawyers Chandan Das, Rubel Paul, Suman Achharya, and Ashirbad Kumar Biswas are among the accused.

Sukhlal Das, former secretary of Chattogram Press Club and senior reporter of Dainik Azadi, and Ayan Sharma, adviser to local daily Chattogram Pratidin, were also sued in the case, the sources added.

Denying the allegation, lawyer Nikhil told journalists that slain lawyer Saiful was their colleague and brother. Those who murdered him must be punished. But the matter of sorrow is that 70 of the 115 accused are lawyers. All are members of Bijoya Sammilan Parishad, a platform of Hindu communtiy lawyers in Chattogram.

"No lawyers were involved in any kind of vandalism or attacks," he claimed.

Journalist Sukhlal also dismissed the allegation brought against him.

Police also filed three cases against 79 named individuals and 1,400 unknown others over the assault, vandalism, and obstruction of police in performing their duties during Tuesday's clash. 

Authorities have arrested 34 people, including nine suspects linked to Saiful's murder. The nine were identified after scrutinising the CCTV footage, according to police.