You can store leftover baingan bharta in an airtight container in the refrigerator for up to 3 days. This brinjal bharta also freezes well. You can freeze it in a freezer-safe container/ bag for up to 1 month. Thaw overnight in the refrigerator and reheat on the stovetop or microwave until the dish is heated. Just before serving, sprinkle with the chopped cilantro.