A dying man, K. Jhunjhunwala would like to locate his missing/runaway daughter, Seema Malhotra, so that he can get her married to Nitin Dharampal, before he dies. The young woman, Seema (Twinkle Khanna), is, however, unprepared to marry Nitin, who she knows as a friend – hence the need for Baadshah's help. Baadshah takes it upon himself to woo the girl and later dump her in order to fulfil the dying man's request and create some much-needed revenue. However, unbeknownst to Baadshah, Jhunjhunwala and Nitin are actually a father-son team wanted by the Central Bureau of Investigation (CBI). The marriage of Nitin to Seema, who is actually the sister of CBI Secret Agent Deepak Malhotra, is meant to stop investigation into the bank fraud case by way of family connections. The plan fails, however, when Agent Malhotra promptly arrests the Jhunjhunwalas before the marriage can take place.
In a second case, prominent businessman, Mahindra, would like to negotiate with his daughter, Sonu's kidnappers, and secure her release.
And the Central Bureau of Investigation would like to protect the life of Chief Minister, Gayetri Bachchan under the mission code-named "Maa", and the CBI Officer in Charge to be code-named "Baadshah".
Now, in a comical twist of fate, Baadshah the bumbling and out of work Private Investigator, who has agreed to assist Jhunjhunwala and Mahindra, is mistaken for the CBI Agent, ends up working for the assassins, and must assassinate Gayetri or end up losing his team of four fellow-bumblers, and Mahindra's daughter. How will the chaotic and convoluted sequence of events unfold?