Sabse Bada Khiladi (transl.?The Biggest Player) is a 1995 Indian action thriller film directed by Umesh Mehra and starring Akshay Kumar, Mamta Kulkarni, Mohnish Behl, Gulshan Grover and Sadashiv Amrapurkar. It was the third installment in the Khiladi film series of films that had Akshay in the lead after Khiladi and Main Khiladi Tu Anari and was the first Khiladi film to be directed by Umesh Mehra and produced by Keshu Ramsay who went on to collaborate together for Khiladiyon Ka Khiladi and International Khiladi and Khiladi 420. The film was a commercial success at the box office and was the sixth highest-grossing Indian film of 1995.
The story of the film is loosely adapted from the novel called Lallu by Ved Prakash Sharma, a Hindi pulp fiction writer. Sharma is credited during the opening credits.
Lallu is an orphan who was separated from his parents and brother in his childhood and has been brought up by foster parents. He travels to Bombay to look for a job and starts working as a loyal servant for rich businessman Jamna Das. One day he discovers Jamna Das's daughter Sunita drunk in a nightclub and takes her home. Jamna Das realises how loyal Lallu is and how he never took advantage of Sunita in her drunken state decides to get them married. Sunita immediately refuses as she is in love with Amit. When Jamna Das suddenly dies of a heart attack, his will and testament reveal that Sunita must marry Lallu or she will not be entitled to any of his wealth and estate. Seeing no other option, she marries Lallu but decides to have him killed with the help of Amit so that she can inherit all of her father's wealth. Sunita and Amit succeed in their plan to kill Lallu by poisoning him, putting him into a car, and crashing it to make it look like an accident. His death is considered suspicious, and the case is assigned to Inspector Vijay Kumar, who is a lookalike of the supposedly deceased Lallu.
Vijay also has a twin brother Ajay, whom he lost during childhood. His brother was apparently murdered by Amit's father, Amar Singh, and the latter had raped a close friend's wife, who was Jamna Das's wife, Gomti. Later Gomti dies of a heart attack when in court Amar Singh (as a lawyer) falsely proves his 'innocence' and renders her guilty. This fact is not known by Sunita. But Vijay swears revenge against Amar Singh for what he did.
The twist in the story comes when Lallu appears before Sunita and Amit, who have presumed him to be dead. He then terrorizes them at their house and, when Amit finally owns up to the crime. The police immediately arrests Amit and Sunita. Lallu says he is none other than Inspector Vijay Kumar. Vijay reveals that it was his plan to frame Amit and his father. It was he who had come as Lallu in the first place, told Jamna Das to enact the heart attack, took Sunita into confidence, done all the pretence, and finally, they had gotten Amit into trouble. Because now Amit is guilty of 'murdering Lallu', Inspector Kekda, a cunning inspector who had helped cover the crime, is also arrested.