The purpose of the study was (1) to assess the economic viability of custom-hire service for ZT in CSISA's target districts in Bihar, the development of ZT service provision businesses over time, and constraints to further business expansion; (2) to assess service providers’ resource endowment, risk exposure, risk preferences, and risk management practices; (3) based on (2), to identify influencing factors of engaging in ZT service provision, including influencing factors of th
e scale of the service business operation.