Hussain Dalal is known as one of the most cherished and successful dialogue writers and has also worked in several films as an actor too. He came into the industry to become an actor and has appeared in various movies like Pizza, which is a horror movie, Margarita with a Straw among others. He is so talented that he hasn't just worked in films but also appeared in TV series like Being on the Night and Greater Elephant. Although his major focus when he came into the industry was acting, he ended up writing dialogues for various famous movies. An assignment for writing dialogues for Yeh Jawaani Hai Deewani fell on his lap when Ayan Mukherjee made an impromptu decision in giving him a chance to write a few scenes. He finally loved his work and decided on hiring him as the dialogue writer for the movie.

He won the Best Dialogue Award for the movie Yeh Jawaani Hai Deewani. Dharma production has immense faith on Hussain, which is why he was given an opportunity to write dialogues for another of their films named two states. He has also written dialogues for a famous movie by Rohit Shetty named Dilwale. He believes that he loves acting on screen but feels that he can express himself better through writing which is why he spends more time writing. However, he claims that he is a writer who is much disorganized and a complete fluke. He is so amateur at writing that initially he felt intimidated by a blinking cursor on the screen of a laptop which is why he used to write everything on paper. He also is not a writer who searches for solitude rather believes in writing amidst the hustle and bustle of the city. Hussain also doesn't watch his work because he feels petrified by it as he is very critical of himself. He is writing a screenplay for a movie and has an upcoming film called Focus which will be releasing soon.