Jolly is a clumsy lawyer who is faced with representing the most critical court case of his career.
.Jagdishwar Mishra AKA Jolly (Akshay Kumar) is a Lucknow based lawyer who works as an assistant (Munshi) to one of the most famous lawyers of Lucknow, Rizvi Sahab (Ram Gopal Bajaj). He hails from Kanpur. Despite being a lawyer, he works as a menial assistant to one of the most famous lawyers of Lucknow, Mr. Rizvi. Rizvi does not allow Jolly to set foot in court, even though Rizvi cannot attend to matters himself, and that Jolly had studied all case files and was well prepared. Mr Mishra (V.M. Badola) is Jolly's who worked for 30 years as a clerk for Rizvi Sahab. Rizvi believes that Jolly should also serve him like his father did.
Jolly supplements his income by helping students cheat in their exams. He sets up a loudspeaker outside the examination hall and announces the answers to the questions, in exchange for money from their parents.
Jolly had noticed a lady named Hina coming to court daily and insisted on having Rizvi as her lawyer as he has fought cases like hers before. No other notable lawyer in the city was willing to take her case.Hina wanted Jolly to recommend her case to Rizvi.
In order to arrange money for his own chamber, Jolly lies to a pregnant lady, Hina (Sayani Gupta) and convinces her to give him Rs 2 Lakh as fees so that Rizvi Sahab would fight her case. As Jolly is only a Munshi, he is paying Rs 12 Lakhs for a chamber that only costs Rs 8 Lakhs. He had arranged majority of the money, but was Rs 2 Lakhs short, which he took from Hina.
Jolly uses that money to pay the final payment for his own chamber and opens it with a ceremony.When Hina finds out that she has been bluffed by Jolly, she commits suicide. Everyone blames Jolly for her death, including Jolly's father
Filled with guilt, Jolly along with his wife Pushpa (Huma Qureshi) & fellow lawyer Birbal (Rajiv Gupta), decides to fight Hina's case & files a PIL. He soon discovers that Hina's husband Iqbal Qasim (Manav Kaul) was killed in a fake encounter by Inspector Suryaveer Singh (Kumud Mishra) on the very next day of their marriage in order to get a promotion. Singh also shot a fellow constable, Baldev Singh Bhadauria (Tarun Kumar), in his thigh, in order to show the encounter genuine. Bhadauria later died due to excessive bleeding, Inspector Suryaveer Singh then hires the best lawyer in Lucknow Pramod Mathur (Annu Kapoor), his friend, to fight his case.
On the very first date, Jolly requests the court for an impartial inquiry into the encounter once again.After reprimanding Jolly for his mistakes in filing the PIL and no credible evidence, Justice Sunderlal Tripathi gives a date for hearing and warns Jolly to collect some evidence before the hearing.
Court gets adjourned. Jolly is able to get FIR copy & papers regarding the case with the help of a bookie Guru Ji (Sanjay Mishra) in Varanasi by paying him Rs. 5 Lakhs (by selling his chamber, for which he paid 12 Lakhs).
In court Jolly argues that Suryaveer shot an innocent Iqbal Qasim by framing official documents that proved that Qasim was in fact Iqbal Qadir, a noted terrorist. The police FIR and charge-sheet reveals Qasim's possessions which clearly prove that he was no terrorist and just an ordinary Indian. Later he is able to track Ram Kumar Bhadauria (Sushil Pandey), the son of the constable who died in the fake encounter.However, during the court hearing, under a heated argument, Jolly slaps advocate Mathur. Court orders a Narco test of Ram Kumar.
Jolly is attacked by two henchmen send by Inspector Singh, but survives with two bullet wounds. However, Singh is suspended from Police Department. Advocate Mathur, uses his power and money to tamper with the Narco test video of the witness and proves Jolly wrong in the court. Judge orders the temporary suspension of Jolly's license as a lawyer for showing allegedly dishonest evidence. Later, Chairman of Discipline Commitee, Rizvi Sahab gives Jolly, 4 days of time to prove himself correct.
Jolly soon notices that a Kashmir police constable visited Lucknow to identify the terrorist during Iqbal and Hina's wedding. Jolly travels to Kashmir and meets the constable, Fahim Butt (Sunil Kumar Palwal), who is now suspended and arrested in a fake case and that he also filed a complaint against Singh. The constable reveals that the person who died in the encounter was not the real terrorist and is ready to give the statement in the court.
Jolly manages to bring the constable to Lucknow court in the next hearing to prove that Iqbal Qasim was not the real terrorist. Meanwhile, Jolly also convinces the police commissioner VK Paul (Avijit Dutt) (& Suryaveer's boss) to tell the truth or else, he will file PIL against all the encounters done by him.
Advocate Mathur, tries his best to avoid constable from giving statement in the court as he creates tussle in the courtroom by insulting the Judge Sunderlal Tripathi (Saurabh Shukla) and by sitting on the floor in protest. Justice Tripathi also sits on the floor, refusing to be swayed by Mathur's tactics.The court hearing is stalled till midnight, but Judge still decides to carry on after that declaring that it is now the next day and Mathur's protest should be over.
After constable's statement Jolly surprises everyone by bringing a Hindu Brahmin Pandit Ramkrishan Premkrishan Saraswat (Inaamulhaq) in the court (with the help of police commissioner), & claims that he is the real terrorist and has been arrested by the police in Mathura.
Jolly cross questions the Pandit in the court by asking him deep details of Hindu Vedas. The Pandit finally breaks up and admits that he is the terrorist, Mohammad Iqbal Quadri, for whom police were searching and he had bribed Inspector Singh to set him free, hence police had encountered Iqbal Qasim to close the case.
Judge then declares Iqbal Qasim innocent and orders the arrest of the terrorist, bails Ram Kumar, son of the constable and gives life imprisonment to Suryaveer Singh along with his accomplices for charge of murder, erasing evidence, misguiding court and showing fake evidences and thus Jolly wins the case.Jolly walks out of the court along with his family & everybody praising him