District and Sessions Judge R N Bawankar also slapped a fine of Rs 8,000 on the convict Mohammad Salim Khan after holding him guilty under sections 302 (murder) and 201 (causing disappearance of evidence of offence, or giving false information to screen offender) of the Indian Penal Code.
Assistant Public Prosecutor Ujjwala Moholkar said Khan, who sold onions and potatoes at Turbhe market, and the victim's father knew each other.
"On July 11, 2015, the victim and his father had gone to Turbhe market where they met Khan. The victim was left with Khan as his father had gone out for a brief period," the court was told.
According to the prosecution, the victim's father owed Rs 45,000 to Khan and hence he murdered the boy.
After hearing of arguments, the judge convicted Khan and sentenced him to life imprisonment.