Nice Intelligent Security Bureau : 9836364627 : Contact : Sector 1, Block BA 36, Near Punjab National Bank, Salt Lake City, Kolkata - 700064 (Also serves Bhagalpur)
Smart Security System : 8000129111 , 9375529111, 9374029111 : Contact : www.smartsecuritysystems.in : 322, Alankar Tower, Near Syajigunj Police Sation.Opp. M.S.University, Sayaji Ganj, Vadodara - 390005 (Also Serves Bhagalpur)
Unique Security System : 8962006009, 8103053222 : Contact : www.uniquess.in : Zone-1, M P Nagar, Bhopal - 462011 (Also Serves Bhagalpur)