Tohfa is a romantic family drama. The movie revolves around two sisters - Janki (Jaya Prada) and Lalita (Sridevi), who fall in love with the same man, Ramu (Jeetendra). However, when Lalita learns that Janki loves him too, she steps back and sacrifices her love, and lets her marry him. However, situations take a turn after Janki and Ramu’s marriage, which makes Janki believe that her sister had an extramarital affair with Ramu. Will Lalita be able to convince her sister and make her see the truth?