The three were yesterday arrested in the over Rs 130-crore heroin recovery case in which another NRI Anoop Singh Kahlon was already in police net and Olympic winner Vijender Singh was quizzed last week.
While Kirpal Singh, a retired DSP of Meerut was sent to custody till March 22, Harpreet Singh and UK-based NRI Kulwant Singh were remanded till March 23, police said.
Kirpal was arrested from Meerut where he was running a pharmaceutical factory.
The second arrested person was identified as Harpreet Singh from Patiala who was a conduit between the suppliers and those who sent and distributed the drug abroad.
UK citizen Kulwant Singh, originally from Phagwara in Kapurthala district was the organiser of the distribution network in Europe and Canada, where this gang used to send the drugs, police said.
He was arrested from a hotel in the Mahipalpur area of New Delhi by a Punjab Police team.