- To promote the cause of Botany and safeguard the interests of Botanists in Bengal.
- To hold periodical meetings in Calcutta as well as in other parts of Bengal with a view to diffuse botanical knowledge among the public and facilitate mutual intercourse among members.
- To encourage original investigations.
- To arrange periodical excursions to different parts of Bengal for the study of its vegetation.
- To arrange for the preparation of local floras, maps, monographs, etc.
- To arrange for the publication of its proceedings.
- To co operate with the Indian Botanical Society and Societies of a similar nature in other parts of India for purposes of common interest, and
- To do and perform all other acts, matters and things that may assist in, be conducive to or necessary for the fulfilment of the objectives of the Society.
