Test takers of certain countries have to follow specific regulations to take the test in those countries. To find out the exact requirements for the country where you will take the test, visit the official page at:
In India, the only acceptable form of identification is a valid passport with your name, photo, and signature. No exceptions are allowed.
You MUST provide your Registration Number. Log in to your TOEFL account and print out your Registration Confirmation – this will have your Registration Number.
Note: The test center may NOT hold your seat for you if you have to leave the test center to get your ID and/or Registration Number.
You cannot take anything into the exam area with you, whether it is food, water, or even a calculator. Whatever you need for the exam will be provided to you by the staff at the test center.
For the full list of things that you MUST be aware of regarding test day, visit this official webpage: