In the Indo-US Nuclear Agreement of 2007, one of the issues included was that India agreed to not test a nuclear device.

Option 1 states that India has `advance right to reprocess` US-origin safeguarded spent fuel. This means that India would have the ability to reprocess spent fuel that originated from the US. However, this issue was not included in the agreement.

Option 2 suggests that India did not have the right to build a strategic fuel reserve with the help of other supplier countries. This means that India would not be allowed to create a reserve of nuclear fuel with the assistance of other countries. However, this issue was not part of the agreement.

Option 4 states that the US would impede with the growth of India`s nuclear weapons program. However, this issue was also not included in the agreement.

Therefore, the correct answer is option 3, stating that India should not test a nuclear device. This means that India agreed to refrain from conducting any further nuclear tests.