Khoka 420 is a Bengali romantic action comedy film directed by Rajib Biswas. The film stars Dev, Subhashree Ganguly, Nusrat Jahan, Tapas Paul, Rajatava Dutta and others. The film is a remake of the 2010 Telugu film Brindavanam starring N. T. Rama Rao Jr., Samantha Ruth Prabhu and Kajal Agarwal. The film served as a spiritual sequel to the 2012 film Khokababu and the second installment of the Khokababu series. The film was dubbed into Hindi as "Mere Ustas 420".

The film was released in the theatres on 14 June 2013. It marked the last on screen appearance of the veteran Bengali actor Haradhan Banerjee. The film became a major commercial success and became one of the highest grossing Bengali films of 2013.