This research explores the “Tomato yellow leaf curl virus” (TYLCV) is a virus causing issues in tomatoes worldwide and is most damaging pathogens. Dozens of plants get affected with this virus and harm garden and production field. This study found that infected tomato leaves are tiny and curl upward, and shows signs of marginal yellowing. This research has reviewed the researches done by authors that explored the disease assessment in tomatoes plants. This research has also explored the review how to diagnose the TYLCV and how to manage.