In 2003, Monga interned with a production coordinator in 2003 in Delhi, and after receiving her mass communications she started career as production coordinator for international productions, most notably Vic Sarin's Partition. She shifted to Mumbai in 2006, when she started working in cricket film, Say Salaam India. This was followed by Rang Rasiya and Dasvidaniya and later in 2009, during the making of Once Upon a Time in Mumbaai, produced by Balaji Telefilms, she met director-producer, Anurag Kashyap, and subsequently in late 2009 she joined Anurag Kashyap Films. Monga's first major international film was the 2010Academy Award for Best Live Action Short Film-nominated short, Kavi, about bonded labour in India, directed by Gregg Helvey, and which won the Student Academy Award - Narrative in 2009. Meanwhile, in 2008 she started her own production company, Sikhya Entertainment and also a line production company. With Anurag Kashyap, she went on to work on film like Gangs of Wasseypur, Part I & II and That Girl in Yellow Boots, besides, Trishna, Shaitan, Michael, and Aiyya. She also raised nearly for Peddlers made of a budget of Rs 2 cr., by posting the film's script on Facebook.. Peddlers was selected at the International Critics' Week, won rave reviews and opened new markets for Indian Cinema. She produced Monsoon Shootout as a co-production between India, Netherland and UK and The Lunchbox, a project shown at Film Bazaar,; Cinemart, Berlinale Co-Production Market and TorinoFilmLab as a co-production between India, France, Germany & USA. In May 2013, when The Lunchbox and Monsoon Shootout both were selected for the International Critics' Week and a midnight screening at the 2013 Cannes Film Festival, respectively, The Hollywood Reporter called her "most prolific producers of a new wave of cinema" while The Hollywood Reporter's "2012 Women in Entertainment special", placed her amongst "12 international players to watch"; India Today has credited her for giving a facelift to independent cinema, and bridging "the gap between Indian films and foreign buyers and distributors.". Guneet is one of the fifty artists from the Entertainment Industry around the world that featured in Variety's International Women's Impact Report 2018. ] Deepika Padukone was the only other Indian artist that featured in this prestigious list from India. In 2018, Guneet became one of the first Indian producers to join the Producer branch of Academy of Motion Picture Arts and Sciences. ]
