Mushroom bed structure and shape have a vital impact on the output, as it can enhance the quality of mushrooms and quantity. To prepare a bed, straw should be cut about 1m in length and 0.75 m in breadth, which is a challenging task and generally carried out with a manual straw cutter. This process of preparing a mushroom bed is quite a time taking and requires more than two workers for the same. Ajay has designed and developed a straw cutter, which can be adjusted to cut paddy straw bundles as per the required size. The capacity of the machine is about 1000-1200 straw bundles per hour. The machine removes drudgery, reduces labour requirements and enhances productivity.