Mujibur Rahman Deo, 30, said he does not repent the attacks and did the quite right thing as they [his victims] do not live by Islamic norms.

Of the victims, Mujibur's father Khan Abul Hossain, a retired jailer, was injured most severely.

The mad man first swooped on his mother Bakul Begum at 8:00pm when she tugged at a window curtain he had wrapped his body with.

"I found someone was sitting on his bed, with the whole body covered by a window curtain, in his bedroom. As I asked who he was, he threw the curtain away, caught me by my hair and stabbed me in the neck and back with a boti (kitchen machete)," Bakul told The Daily Star.

Hearing Bakul's cry, when her daughter Jebunnesa Shilpi rushed to her aid from an adjacent room, her brother hit her in the neck with the boti.

The next victim was Abul Hossain, who also ran into the room hearing his wife's cries. Mujibur pinned him on the floor and hacked repeatedly at his head, shoulder, back, hands and legs.

When the family members raised an alarm for help, Mujibur, clothed only in undergarments, went out of their rented ground floor flat at Bhatara Notunbazar.

He then stabbed Nazma Begum, an 18-year-old girl of a neighbouring house, while she was eating dinner.

His next victims were 11 rickshaw-pullers, whom he hit in their shoulders, before locals and police could catch him after chasing for two kilometres.

The angry people beat him up and then took him to Dhaka Medical College Hospital (DMCH), where he was put in a straitjacket.

Mujibur's parents, sister and eight of the injured rickshawpullers were also admitted to the DMCH, while Nazma was rushed to the Orthopaedic Hospital.