The cost of OET preparation courses varies significantly from one institution to the next. Before enrolling, it’s important to ask specific questions about what’s included in the OET course materials, whether or not the official guide is present, whether or not practice tests will be given, and how many hours of instruction you can expect to receive. Nonetheless, make sure the trainer has actual OET experience. To prepare for the OET, expect to pay anywhere from Rs. 9000 to Rs. 20000 rupees (around $130 to $250).