DABANGG 3 is the story of a badass cop. Chulbul Pandey (Salman Khan) is now the SP of a town named Tundla. As soon as he arrives, he nabs a bandman-turned-goon Guddu (Nawab Shah) and reforms him. He then busts a human trafficking racket under Chinti Valia (Dolly Bindra). The kingpin of this business is Bali Singh (Kichcha Sudeepa). As soon as Chulbul finds out about this aspect, he goes into a shock. Some repressed traumatic memories come alive in front of his eyes.
The story then goes in a flashback mode. This is a time when Chulbul's name was Dhaakar. He comes across the picture of Khushi (Saiee M Manjrekar). She was selected as the bride for Dhaakar's brother Makkhi (Arbaaz Khan). But Dhaakar falls for her. He meets her and wins her heart with his progressive thoughts and of course, style. At the insistence of Khushi, he changes his name to Chulbul. The alliance was fixed and all was going well.
One day Bali Singh bumps into Khushi and he falls for her. But when he learns that Khushi is madly in love with Dhaakar, he gets enraged and kills her in front of Dhaakar. On top of that, Dhaakar is jailed for the murder of Khushi and her parents. In the prison, he comes across a large hearted police officer Satyendra Singh (Sharat Saxena). He helps him get acquitted and also motivates him to join the police force. As soon as he turns cop under the name of Chulbul Pandey, the first thing he does is to throw Bali Singh down a cliff. He is presumed to be dead. Hence, Chulbul is shocked that Bali survived and is now back to challenge him. What happens next forms the rest of the film.