Tinsukia, like many other regions in India, has a moderate safety level for solo female travelers. While locals are generally friendly and the majority will go out of their way to help a visitor, it's still recommended to exercise a level of caution. Unwanted attention can occasionally occur. Staying in well-populated areas, refraining from venturing out alone late at night, and maintaining a sense of discretion could mitigate risks. Utilizing local transportation like auto-rickshaws rather than walking alone and dressing modestly can go a long way in reducing unwanted attention. Bearing all this in mind, with careful planning, it's perfectly possible to have a positive experience.