Unlock the vital role of cyanobacteria in Indian agriculture with this comprehensive guide. Focused on paddy fields of West Bengal, it details biofertilizer production, medicinal applications, and protein supplements. Essential for Botany, Microbiology, and Biotechnology students, it bridges classical taxonomy with modern molecular biology. Researchers and agronomists will find invaluable insights into sustainable farming, ecological studies, and the biotechnological potential of blue-green algae in Indian contexts.