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There are many Cassia species which are used in preparing diverse range of herbal products. As per the necessity the present review study reports that Cassia fistula used as medicinal plant for curig various critical diseases. Cassia fistula belong Caesalpinaceae family, commonly known Bandarlati or Sondal. The plant generally grows in India, Bangladesh, Sri Lanka, China, Nepal, Malaysia, Afghanistan, Indonesia, Bhutan and Thailand. From ancient time it is used in various traditional medicinal systems. It is used as anti-cancer, anti-pyretic, ant-diabetic, and analgesic agent. The plant parts are the vital source of plant secondary metabolites such as polyphenols, flavonoids, terpenoids, saponins, anthraquinones, tannin, alkaloid and steroids. The fruits, flower, seed, stem, and leaves of the plant carry these bioactive compounds. These phytochemiclas are effective for the medicinal properties of the plant. The entire plant or its important parts are used for treating the multiple diseases like COVID-19, oxidative stresses, cancer, tumour, microbial infections, swellings, and HIV. The focus of this review article is to highlight the several important botanical, phytochemical and medicinal aspects of Cassia fistula to the entire research communities

Stress is the unfavorable and external condition that affects a plant’s metabolism, growth, development, productivity and others physiological condition. Various kind of abiotic stresses like cold, heat, drought, salinity, metal stress, etc affected the normal development, growth, productivity and other function of the plant. To respond with its changed environmental factors, plants rearrange its morphological, metabolic, and genetic mechanism. Under abiotic stress plants at first changes its structural and functional aspects of cellular components. Various stress responsible genes are activated in this time so that plants can rapidly synthesize important proteins and other metabolites during abiotic stress. Plants employ multiple and alternative morphological, metabolic, and genetic approaches, so that they could survive from those adverse environmental conditions

Herbs are an important source of bioactive substances. These are widely used to treat several disorders for better function in the human body, minimum toxic effects, and widespread availability. A total of two medicinal herbs from West Bengal, India, such as Oldenlandia corymbosa (Diamond flower) and Ocimum sanctum (Holy basil), are being considered for inclusion in the current study. Hydroalcoholic extracts (70% ethanolic) of the two plants' leaves were analyzed to detect and quantify important phytochemical substances and investigate in vitro antioxidant and pharmacological effects. Spectrophotometric and HPLC-DAD techniques were used for the quantitative estimation of different phytochemicals. In addition, in vitro antimicrobial properties were studied using the Kirby-Bauer paper disc diffusion method. Several assays have been performed on the medicinal plant Oldenlandia corymbosa (OC). The results have been compared to those obtained from a traditional medical plant, Ocimum sanctum (OS) for the first time to our knowledge. Results showed that OS contains a higher quantity of polyphenols, flavonoids, and has higher antioxidant potential with respect to OC. Similar trends were observed for polysaccharides contents. In contrast, OC contains a higher quantity of tannins, alkaloids, and protein and higher in vitro antibacterial and anti-diabetic properties. HPLC-DAD-based profiling of eight important phenolic constituents viz. Gallic acid, catechin hydrate, chlorogenic acid, caffeic acid, syringic acid, p-coumaric acid, sinapic acid, coumarin, quercetin, and kaempferol, were performed. The current study concluded that Oldenlandia corymbosa has many bioactive phenolics in considerable amounts compared to the highly established medicinal herb OS leaves extracts. The current study demonstrates the pharmacological significance of Oldenlandia corymbosa that may generate enthusiasm among researchers and those working in the pharmaceutical industry.