Section 18C(1) in The Maharashtra Cooperative Societies Rules, 1961
(1)Where the number of members of the society is so large and it is not possible to ascertain the correct addresses of all such members from the records of the office of the Registrar, and in the opinion of the Registrar it is not practicable to serve notice of hearing on each such individual member as contemplated under the proviso to sub-section (1) of Section 21 A, a public notice of the proceedings of the de-registration of society shall be published in two local newspapers having wide circulation in that locality in which the registered office of the society proposed for de-registration is situated, and of which at least one shall be in the Marathi language. A copy of the said public notice shall be sent to the registered address of the society by registered post acknowledgement due together with the directives to display it in the office of the society. Such copy of the notice shall also be displayed on the notice board in the office of the Registering authority. If the notice sent by such registered post is returned undelivered, the notice shall be treated as having been duly served, but a copy of the said notice shall be displayed on the notice board in the office of the society.