Botany is a study of Plant Science and Technology. The Department of Life Sciences was started with the inception of the College in 1963. In 1994, its nomenclature was changed to Department of Botany which offers a full fledged three year degree course. The Department has a well-equipped Laboratory, a Herbarium named after Rev. Fr. Joseph Pallithanam (S.J.) and a collection of preserved plant and animals specimens. The Herbarium is the oldest in Goa with a large collection of dried plant specimens and has been digitalized. The Department also has an Orchidarium named after Fr. Edward de Cruz, set up in 2003 and is first of its kind among the Educational Institutes in Goa.

The Department organizes an array of activities like Wild Flower Exhibition, Certificate courses in Mushroom Cultivation, Homemade Herbal Products, Collection, Isolation and Identification of Micro Fungi and Culturing and Mass Production of Arbuscular Mycorrhizal Fungi. Field trips are conducted and consultancy services are provided for identification of plants. Students are also sent for Internship training. The Department publishes its Newsletter “Plantae”.

Students of Botany after their graduation have a wide choice of careers. They can pursue their Masters degree in Botany, Genetics, Marine Science, Biotechnology, Bioinformatics and continue with Ph.D. or seek employment in various Research and Agriculture Institutes, Indian Forest service (IFS) or pursue teaching in schools and colleges. Students can also be self employed as a Horticulturist, Floriculturist, Mushroom Cultivator, Landscape developer, Ecotourism manager apart from setting up Agriculture farms.