The algal and cyanobacterial communities thriving in the paddy-field ecosystems serve as good indicators of the wetland's suitability for the growth of other organisms and can potentially be applied in sustainable agriculture. The main objectives of the present study was to study the diversity of algae present in the paddy fields of Simdega, Jharkhand, to determine their phytochemical and nutrient profile and to determine their potential use as biofertilizer in paddy field. The secondary data was obtained from the published research articles, scientific publications, institutional publications, government reports and official government websites. Systematic compilation and descriptive analysis of information related to algal diversity, biochemical constituents, nitrogen fixation, nutrient cycling, soil fertility and cultivation of paddy were carried out and agricultural characteristics of Simdega were discussed. The available evidence suggests that paddy fields can harbour cyanobacteria, green algae, diatoms and other algal groups and their distribution depends on water availability, soil characteristics, nutrients, temperature and agriculture. Proteins, carbohydrates, amino acids, nitrogen, phosphorus, potassium, chlorophyll, carotenoids and phycobiliproteins have been reported in the freshwater algae from regional studies of Jharkhand. Nitrogen-fixing cyanobacteria can supply biologically available nitrogen, algal standing crop can supply organic matter and nutrients, and may also affect soil microbial community activity and plant growth. The results suggest that indigenous algal resources can be used as sustainable alternative for nutrient management in the paddy cultivation system. However, their effectiveness as bio-fertilizers in the field needs to be confirmed through species specific laboratory characterization and controlled field experiments for their efficiency in Simdega.

Haldhar Singh, Dr.Vidyan Kumara,"Exploration of Algal Diversity: Phytochemical Analysis and Utilisation as Sustainable Bio- Fertilizer From Paddy Fields of Simdega, Jharkhand" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(5): Page(625-636) September - October 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.