rate contract tender for manufacture, supply, installation, commissioning and testing of new advance microprocessor based excitation and control system along with sensors, hardware and software for in-service wdm3a alco locomotives , manufacture, supply, installation, commissioning and testing of new advance microprocessor-based excitation and control system along with associated sensors, necessary hardware & software , man-day charges for warranty/ maintenance support at client site in african countries inclusive of daily wages, fooding etc. for 1 service engineer. note:- *cost of to & fro air tickets of the firm’s representative will be borne by rites. *lodging will be provided by rites along with other rites team members stationed for maintenance and service. * rites will pay for actual night spent outside india. * this clause will be invoked if required