Days after the daylight murder of a Nestle factory union president Umarsir Singh in Bhinder Kalan village of Moga, Punjab, the police on Thursday arrested five suspects, Pargat Singh, Gurmeet Kaur, Jugraj Singh, Jaspreet Singh, and Gurneel Kaur, from Goa. They were brought back on transit remand and have been placed in police custody for two days, said officials.