This document discusses different models for commercializing crop varieties developed under public research systems in India. It summarizes various approaches taken such as licensing to a large number of companies with low fees, licensing to a small number of companies with high fees and selection criteria, and licensing without fees but with minimal royalties. Royalties collected at the source of seed sales are preferred by partners. Licensing varieties to big corporations is discussed for more specialized varieties. The advantages and issues of different partnership and licensing models are presented.