Mirabilis jalapa Linn belongs to the family Nyctaginaceae and is a large herbaceous plant grown in gardens throughout India. Mirabilis jalapa Linn is widely used in conventional medicine in many parts of the world for the treatment of various diseases viz. virus inhibitory activity, anti-tumor activity, etc. Very few reports are available on the architecture of pollen grains, image analysis, Antimicrobial activity, pharmacognostic and phytochemical nature of Mirabilis jalapa Linn. The present project contains the following objectives: 1. Staining of pollen grain and observation of meiotic stages. 2. Phytochemical studies of 3 different colored plant varieties of M.jalapa by TLC. 3. Comparative Evaluation of Antimicrobial Activities of plant leaf Extract (3 different colored varieties) of Mirabilis jalapa. 4. Image analysis of data got by experimentation using software.