The Indians, who are in the age group between 35 to 40 years, would be transferred to a detention centre in Sri Lanka until arrangements are made for their return back home.
Sri Lankan immigration authorities have detained seven Indians for allegedly overstaying in the island nation after expiry of their visa.
The Department of Immigration and Emigration's investigation wing held the Indian nationals last week for defying their visa conditions by overstaying and taking up work as labourers at a leading construction site in Wattala near here, Daily Mirror newspaper reported on Monday.
Following a tip-off, the officials raided the construction site and found the Indians, who had come to the country on a 30-day business trip, overstaying their visa. Their passports have been confiscated by the authorities.
The Indians, who are in the age group between 35 to 40 years, would be transferred to a detention centre until arrangements are made for their return back home, the report said.
Preliminary inquiries revealed that they arrived in the country from southern Indian states and had applied for visa online, said the report.