Trust is a entity which is formed for the benefit of a single person or group of person. It can be a public or private. It also can be a state level and national level. It work on concept of Non-profit basis.
Society is formed by a group of person for the pupose of performing a single object. It can be state level society or multistate society where 7 person required from different states to perform work in such states.
Partnership is an association which formed by two or more person which is formed by either simple notary or registered with the registrar. After signing the partnership deed, PAN to be applied and start the business by opening current account.
Partnership cab be closed by entering the dissolution deed.
Trust can be closed by entering the trust desolution deed and filing such deed with the registrar.
Society can be closed by entering the Society desolution deed and filing such deed with the registrar.