Based on Tiwari's experiences as a student of the Indian Institute of Technology, Bombay, the film stars Sushant Singh Rajput, Shraddha Kapoor, Varun Sharma, Naveen Polishetty, Tahir Raj Bhasin, Tushar Pandey and Saharsh Kumar Shukla in the lead roles, with Shishir Sharma and Mohammad Samad in supporting roles.

[5] Chhichhore was released on 6 September 2019, receiving widespread critical and commercial acclaim for its direction, storyline, dialogues, humour, performances of the ensemble cast, social message, and portrayal of hostel life in Indian colleges.

The occupants of H4 have earned this tag for numerous unknown reasons, one of them being the poorest quality of mess food on the entire campus.

As the story returns to the present, Sexa narrates to Anni and Maya during a lunch break how he and a friend named Himanshu "Acid" Deshmukh once received a funny pro-ragging request in 1992 from the father of a fresher named Sundar "Mummy" Shrivastava, a young introvert who is tied to his mother's apron strings and is very dependent on her.

At this stage, Mummy joins Sexa in the present day, working as an executive in the United States, which has thickened his accent.

Anni then describes Acid as a school topper who began flunking his college tests and developed a bitter, swearing tongue.

However, this tactic hits back severely on their faces when Bevda has a relapse and is taken to the hospital, causing the H4 team to lose hope.

Bevda continues to reign in points for H4 in chess after his return, Derek's athletic skills prove a great asset for H4, and eventually, H4 makes it to the finals, pitted against H3, for the first time in college history.

Seeing Mummy call up his son Vedant and tell him that he will gift him a bike irrespective of what his exam results would be, Maya surmises that Anni is an exceptional father and reconciles with him after an emotional breakdown.

Right in the middle of the night, Anni's phone suddenly rings, wherein Dr. Kasbekar informs him that Raghav has had severe convulsions, and an immediate operation would have to be carried out.

They resume the story, where back in 1992, a vexed Raggie, upon learning of H4's methods, decides to sabotage Bevda by offering him a bottle of alcohol and deliberately has his teammate injure Derek's foot.

Chhichhore is inspired by writer-director Nitesh Tiwari's own experiences of college life as a metallurgical engineering student at the Indian Institute of Technology, Bombay, his alma-mater, which is depicted in the film as the 'National College of Technology'; although not completely biographical in nature, it features character sketches loosely inspired by Tiwari himself as protagonist Aniruddha Pathak, as well as some of his closest friends and seniors.

[14] Shane Nigam was supposed to play the role of a Malayali student, but opted out due to scheduling conflicts with Kumbalangi Nights;[15] he was subsequently replaced by newcomer Abhishek Joseph George.

[23] Sukanya Verma reviewing for Rediff felt that Chhichhore offered "too good a time to pay attention to its faults", giving the film 3.5 out of 4 stars.

[24] Sreeparna Sengupta of The Times of India gave the film 3.5 stars out of 5, praising the performances of Sushant Singh Rajput, Shraddha Kapoor, Varun Sharma and Tahir Raj Bhasin.

Sengupta noted that the screenplay was predictable and the pace was slow, but the film had a theme of academic success that connected with youngsters and parents, writing that, "it [Chhichhore] tells you that the journey is far more important than the destination and that losing is as critical a life lesson as winning.

"[25] Monika Rawal Kukreja from Hindustan Times wrote that, "the Sushant Singh Rajput-Shraddha Kapoor film takes you on a nostalgia trip to your college days with an engaging narrative and flashback sequences".

[27] Bollywood Hungama in its review wrote that, "on the whole, the Sushant Singh Rajput Shraddha Kapoor starrer Chhichhore is a decent entertainer that has its share of touching scenes", while giving it 3.5/5 stars.

[32] Shalini Langer of Indian Express criticised the performance of Sushant Singh Rajput and called the film "a disappointing fare", giving it 1.5/5 stars.

The performance at the China box office is being attributed to the fact that the ongoing pandemic has greatly reduced in theatre footfalls.

This coupled with the fact that Chhichhore saw immense competition from new and previous releases entailed a tough uphill task for the business of the film at the China box office.