• Sanya Malhotra as Genda 'Chhutki' Kumari
• Radhika Madan as Champa 'Badki' Kumari
• Sunil Grover as Dipper Naradmuni
• Vijay Raaz as Bechara Bapu
• Saanand Verma as Tharki Patel
• Namit Das
• Abhishek Duhan
• Malaika Arora (special appearance in song "Hello Hello")

Development

Impressed with Charan Singh Pathik's short story Do Behnein (Two Sisters) published by Sahitya Kala Academy, Vishal Bhardwaj decided to purchase the rights of the story and turn it into a film. In December 2017 it was reported that Kriti Sanon was the first choice of the director for the role of the younger sister and the actress had even auditioned for the part but talks did not go through. For the role of the elder sister a number of actresses including Parineeti Chopra, Bhumi Pednekar, Sonakshi Sinha, Vaani Kapoor and Shraddha Kapoor were auditioned but none of them were finalized. In March 2018, Sanya Malhotra was finalized for the role of Genda Kumari, the younger sister, while in April 2018 television actress Radhika Madan was selected to play Champa Kumari, the elder sister, a role for which over 60 girls were auditioned. On 17 April 2018, it was reported that Vijay Raaz and Sunil Grover had been signed to be a part of the film. While Vijay was selected to play the role of the father of the two sisters in the film, Sunil's role was described as that of a person who instigates fights between the sisters.

As part of preparation for the role, Sanya Malhotra and Radhika Madan stayed in Ronsi village near Jaipur in Rajasthan and apart from learning the Rajasthani dialect, the actresses also got accustomed with milking Buffaloes, thatching roofs, plastering the walls with dung and walking for long distances while balancing matkas full of water on their head and one around their waist.^[17] Sanya and Radhika also had to put on 10 kgs of weight for the second part of the story where both of them are married and have a child each.^[18][19] Initially the film was titled Chhuriyaan (English: Knives) but was later on changed to Pataakha (English: Firecracker) because Vishal Bhardwaj, the director of the film, felt that it might confuse the audience considering the multiple meanings that can be derived from it if not pronounced correctly.^[20][21]

Filming

The principal photography of the film began in Udaipur, Rajasthan at the end of April 2018.^[22] The first schedule of the film came to an end on 16 May 2018.^[23] The final schedule of filming began in Mount Abu on 29 June 2018^[20] and was completed on 12 July 2018.^[24][25][26]. The item song which featuring Malaika Arora, cheographed by Ganesh Acharya will filming in end of August. ^[27][28]

The music of the film has been composed by Vishal Bhardwaj, while the lyrics have been written by Gulzar.^[29][30]