Section 4(4)(c) in The Goa, Daman and Diu Agricultural Tenancy (Discharge of Joint Responsibility of Tenants) Rules, 1975
(c)A member may authorize in writing, any other person who may be a member or not, to represent him in any of the meetings of the Association and such authorized person shall have a right to participate in the deliberations of the meeting and also to cast his vote.