A young businessman from the temple town of Palani in Tamil Nadu was also arrested along with the ex-serviceman Rajan Nair, who was a neighbour of the girl hailing from Paravoor in Ernakulam district, police sources said.
Thirty two year-old Magudiswaran from Palani, a 61-year-old-man from Palakkad, Swamidasan and Shebin (28) were arrested yesterday, taking the total arrests in the case to 55.
The girl's father, who was allegedly the first to exploit her, is among those who have been arrested.
In another case of sexual abuse of a minor girl from Kothamangalam near here, at least 11 persons have been arrested. Two classmates of the girl were also picked by police in connection with the case and produced before the Juvenile Justice Board after which they were allowed to go with their parents, sources said.