The phytoplankton community in saltwater bodies is vital for sustainable development in numerous ways. The present diversity study addresses seasonal changes in the micro-flora community to detect rapid changes in available nutrients and other components compared with diversity indices in Sambhar Lake. Significant reduction in Lake body surface area and increase in algal bloom may be triggered by some climate factors, anthropogenic and industrial activities, and heavy metals contamination resulting in danger to this ecosystem. The physicochemical or biochemical changes in any aquatic environment control the change detection in the algal community regarding the dominance or loss of particular algal species and give an early warning of changes in water quality or pollution. An attempt has been made to find uninvestigated fast-growing and bio-monitoring potential algae to protect and conserve this Ramsar site from pollution and heavy metals contamination. Collected samples from Sambhar Lake generated new information on the seasonal dynamics of the phytoplankton community exploring Dunaliella, Chlorella, Oscillatoria and Microcystis algal species crucial for sustainable development.Algae (cyanobacteria, blue-green algae, and Diatoms) have been used as bio-indicator as a reliable, rapid and inexpensive way to direct measurement of water chemistry concerning aquatic organisms across several sites in a given time.