Spurred on by his pushy mother, Kanta, slacker Dinkar Waghmare, infatuated with TV Reporter, Soniya Bhatt, is compelled to join the Mumbai Police Force as a Sub-Inspector and follow in his late father's footsteps. On his way to Mumbai, his service revolver gets stolen by three youth. His hilarious attempts to recover it leads him to assorted characters and situations which include an underground den of organized criminal don Raghav Shetty; the suicidal daughter, Suhasi, of Police Commissioner Digvijay Mathur; an angry resident, Hasmukh Irani, who is threatening to kill the Mayor; a lovelorn terrorist, Balma Rashidul Khairi, who has been sent to plant an explosive in an 1800-plus gathering of Mumbai's police officers.
Unable to get a job, dependent on his brother, Vinay, and sister-in-law, Krishnakant Jagarlamudi decides to woo and wed a woman who is going to settle abroad. He comes across one, Manju, makes her believe that he is heartbroken after being rejected by a fictional female, Meenakshi, and she sympathizes and then falls in love with him. Complications rise for him when a female named Meenakshi actually enters his life and he falls head-over-heels in love with her - not realizing that Manju, who comes from a very influential family, is determined to marry him at any and all costs.
Based in Chennai, plainclothes police officer Pugazh slays Raka, a male wanted by Inter-pol, during the Shri Ganesh Visarjan. This news alerts his associates, some of who become alert, while others relieved, and Pugazh is instructed to proceed with his next target. The latter then meets with Janavi and both eventually fall in love. She then lets him speak with her wealthy Munich-based father, J.D., who instructs them to come home. Once there, he displays his disapproval for Pugazh. Unable to get close to his target, his stay is prolonged, prompting his mother to also travel there. And it is her arrival that will dramatically alter the entire situation - changing everyone's lives forever.
Farhan Qureshi and Raju Rastogi want to re-unite with their fellow collegian, Rancho, after faking a stroke aboard an Air India plane, and excusing himself from his wife - trouser less - respectively. Enroute, they encounter another student, Chatur Ramalingam, now a successful businessman, who reminds them of a bet they had undertaken 10 years ago. The trio, while recollecting hilarious antics, including their run-ins with the Dean of Delhi's Imperial College of Engineering, Viru Sahastrabudhe, race to locate Rancho, at his last known address - little knowing the secret that was kept from them all this time.