Removal of unwanted plants is utmost for optimum production of agricultural crop. But conventional practices of weeding took more time and human resources, thus resulting in low profit and reduced production. The machine could be used instead of manual weeding which reduces the weeding time and increases overall efficiency of weeding. Different mechanical weeder are available nowadays which will perform efficiently with limited human resources and within limited time. Mechanical weeder can be used in every crop i.e. cereals, vegetables, fruits, flowers etc. which is cultivated in definite geometric pattern, rather than broadcasting. Every crop has certain critical weeding period, to ensure weed free field during such duration mechanical weeder is very useful.