A method of comparatively evaluating adipogenesis inhibition potential of forskolin, wherein forskolin is added separately to pre-adipocytes before differentiation and also to mature adipocytes, said process comprising steps of: a) Seeding mammalian adipocyte precursor cells (pre-adipocytes) in wells of microplates, wherein approximately 60×10 4 cells are seeded for 48-72 hours to get 70-80% confluence; b) Adding forskolin at concentrations of 50 μg/ml and 100 μg/ml, respectively, in the pre-seeded microplates of step a containing undifferentiated pre-adipocytes; c) Adding 200 μl of freshly prepared adipogenesis induction medium to the wells; d) Adding 200 μl of freshly prepared adipogenesis progression medium after 72 hours of incubation with the adipogenesis induction medium in step c; e) Incubating the cells treated with forskolin (step b), adipogenesis induction medium (step c) and adipogenesis progression medium (step d) for 48 hours in a humidified atmosphere of 5% CO 2 and 95% air at 37 deg. C; f) Fixing the cells of step e by adding 100 μl of 10% formalin and staining using the Oil Red O technique; g) Reading the optical density of cells of step f at 492 nm in a microplate reader and expressing the results as inhibitory concentration (IC 50) values using the graph pad prism software; h) Calculating the percentage inhibition of adipogenesis in the cells of steps f and g using the formula, C-T/T×100, wherein C is the absorbance of Oil Red O in differentiating/undifferentiated cells and T is the absorbance of Oil Red O in sample treated differentiating/undifferentiated cells; i) Adding 200 μl of freshly prepared adipogenesis induction medium to the wells of step a, which wells comprise the cells; j) Adding 200 μl of freshly prepared adipogenesis progression medium comprising graded concentrations of forskolin (50 μg/ml and 100 μg/ml respectively) to the wells of step i after 72 hours of incubation with the adipogenesis induction medium; k) Incubating the cells treated with forskolin (step j), adipogenesis induction medium (step i) and adipogenesis progression medium (step j) for 48 hours in a humidified atmosphere of 5% CO 2 and 95% air at 37 deg. C; l) Fixing the cells of step k by adding 100 μl of 10% formalin and staining using the Oil Red O technique; m) Reading the optical density of cells of step I at 492 nm in a microplate reader and expressing the results as inhibitory concentration (IC 50) values using the graph pad prism software; n) Calculating the percentage inhibition of adipogenesis in the cells of steps I and m using the formula, C-T/T×100, wherein C is the absorbance of Oil Red O in differentiating/undifferentiated cells and T is the absorbance of Oil Red O in sample treated differentiating/undifferentiated cells; and o) Comparing percentage inhibition of adipogenesis in the cells of steps h and n. a) Seeding mammalian adipocyte precursor cells (pre-adipocytes) in wells of microplates, wherein approximately 60×10 4 cells are seeded for 48-72 hours to get 70-80% confluence; b) Adding forskolin at concentrations of 50 μg/ml and 100 μg/ml, respectively, in the pre-seeded microplates of step a containing undifferentiated pre-adipocytes; c) Adding 200 μl of freshly prepared adipogenesis induction medium to the wells; d) Adding 200 μl of freshly prepared adipogenesis progression medium after 72 hours of incubation with the adipogenesis induction medium in step c; e) Incubating the cells treated with forskolin (step b), adipogenesis induction medium (step c) and adipogenesis progression medium (step d) for 48 hours in a humidified atmosphere of 5% CO 2 and 95% air at 37 deg. C; f) Fixing the cells of step e by adding 100 μl of 10% formalin and staining using the Oil Red O technique; g) Reading the optical density of cells of step f at 492 nm in a microplate reader and expressing the results as inhibitory concentration (IC 50) values using the graph pad prism software; h) Calculating the percentage inhibition of adipogenesis in the cells of steps f and g using the formula, C-T/T×100, wherein C is the absorbance of Oil Red O in differentiating/undifferentiated cells and T is the absorbance of Oil Red O in sample treated differentiating/undifferentiated cells; i) Adding 200 μl of freshly prepared adipogenesis induction medium to the wells of step a, which wells comprise the cells; j) Adding 200 μl of freshly prepared adipogenesis progression medium comprising graded concentrations of forskolin (50 μg/ml and 100 μg/ml respectively) to the wells of step i after 72 hours of incubation with the adipogenesis induction medium; k) Incubating the cells treated with forskolin (step j), adipogenesis induction medium (step i) and adipogenesis progression medium (step j) for 48 hours in a humidified atmosphere of 5% CO 2 and 95% air at 37 deg. C; l) Fixing the cells of step k by adding 100 μl of 10% formalin and staining using the Oil Red O technique; m) Reading the optical density of cells of step I at 492 nm in a microplate reader and expressing the results as inhibitory concentration (IC 50) values using the graph pad prism software; n) Calculating the percentage inhibition of adipogenesis in the cells of steps I and m using the formula, C-T/T×100, wherein C is the absorbance of Oil Red O in differentiating/undifferentiated cells and T is the absorbance of Oil Red O in sample treated differentiating/undifferentiated cells; and o) Comparing percentage inhibition of adipogenesis in the cells of steps h and n.