Rotatory mixing device is frequently and indispensible instrument in molecular biology, chemical and clinical laboratories. Depending upon the type of application they are used to mix samples in micro-centrifuge tube and polypropylene centrifuge tube (15 ml) in molecular biology labs. In clinical laboratories it is used to mix blood samples. The device cost ranges from ₹ 5,000 to ₹ 50,000 ($ 70 to 700). This is ridiculously expensive to do simple jobs. Due to this reason, most of the colleges and hospitals do not buy such products in developing countries and remote setups. We have tried to break this barrier by developing a very economic sample rotatory mixer that can be fabricated in less than ₹ 100 or $ l.5.