Apartment owners association membership

Dear Sir.

We are about to form an apartment owners association under Karanataka Societies Registration Act 1960. Some owners are residing outside India. If we form the owner's association without some of the owners, the questions are:

1. Will the owners residing outside India automatically become members  of the association? They are not physically present at the time of registration of association.

2. If not, can their names be included in-absentia with written consent?

3. If they can neither become membes automatically nor in-absentia with written consent, are they obliged to pay maintenance?

Best Regards.