Do Jasoos (1975) is a Hindi-language comedy-drama directed by Naresh Kumar. The film stars Raj Kapoor as Dharamchand and Rajendra Kumar as Karamchand, two middle-aged, bumbling private detectives struggling with mounting debts. They are hired by a wealthy businessman to locate his missing daughter, Hema. However, due to a mix-up, they receive a photograph of Hema’s friend, Pinky Verma, instead. Unbeknownst to the detectives, Pinky is caught in a dangerous web of crime involving gangster Prem Chopra and criminal don Motilal Sippy.

As they attempt to rescue Pinky, Dharamchand and Karamchand inadvertently become embroiled in uncovering a smuggling racket, counterfeit currency operations, and a prostitution ring. The film features a memorable soundtrack composed by Ravindra Jain, with popular songs such as "Dariya Raja Deva Ho Deva", "Saal Mubarak Saaheb Ji", "Do Jasoos Kare", and "Main Bijli Hoon Titli Hoon". Interestingly, the song "Dariya Raja Deva Ho Deva" incorporates elements from the 1971 song "Woyaya" by the Ghanaian Afro-pop band Osibisa.