A police officer last night filed a case against more than 1,000 members of Bangladesh Rifles (BDR) on charge of having ties to the mutiny at Pilkhana.
Lalbagh police chief Nabo Jyoti Khisa filed the case.
According to the case details, four deputy assistant directors (DAD), a sepoy and a BDR personnel led the revolt that left at least 64 army officers killed.
The suspected ringleaders are DADs Touhidul Alam, Nasiruddin Khan, Mirza Habibur Rahman, Abdul Jalil, sepoy Md Selim and BDR member Abdur Rahim.
Nabo Jyoti alleged that the accused people killed the officers and their relatives in a planned way.
The police officer accused the BDR men of taking hostages, committing arsons and hiding dead bodies.
Accused Abdul Jalil was now undergoing treatment at the Holy Family Red Crescent Medical College and Hospital in the capital.
He was part of the 14-member team that met Prime Minister Sheikh Hasina on Wednesday to vent their demands.
Md Nowsher Ali, joint commissioner (crime) of Dhaka Metropolitan Police, who has been supervising the case, told The Daily Star that the six suspects were identified in the primary investigation.
He said further investigations would identify the rest.