A shopowner in Cuffe Parade was murdered by his neighbours on the night of May 18 after he asked them to pay back approximately Rs 40,000 he had loaned them.
The Cuffe Parade police arrested six people identified as family members of the prime accused Vikram Prasad, 34. The police believe they played a role in the murder of Shekhar Swami, 55, owner of a small paan-beedi shop.
According to the police, Swami asked the accused, Prasad, to pay back several loans, including the amount pending on goods he had sold to Prasand on credit.
"Vikram had been buying goods from Swami's shop claiming he would pay him back but he never did," said Janardhan Kharat, senior inspector, Cuffe Parade police station.
Sources told HT that Swami had also lent Vikram money.
"On Wednesday night, Swami refused to give any goods to Vikram unless he cleared the existing debt. This led to an argument and Vikram started hitting Swami with broken tiles," Kharat said, adding that Vikram's whole family got involved in the scuffle.
The police are now looking for Vikram's cousin, Vivek Prasad, 31, who is currently absconding.