Bollywood has been a powerhouse for storytelling, weaving narratives that engage audiences across various genres. In the horror genre, filmmakers often draw from real-life incidents, adding an authentic and chilling layer to their tales. As of 2023, we explore the top 10 Bollywood horror movies inspired by true events, offering audiences an immersive experience that sends shivers down their spines.

1. Raaz (2002): Directed by Vikram Bhatt, "Raaz" derives its suspenseful plot from the reported haunting experiences of a newlywed couple at Ooty's Fernhill Hotel. The film skillfully combines supernatural elements with a haunting love story, delivering an edge-of-the-seat experience.
   
   

2. Bhoot (2003): Ram Gopal Varma's "Bhoot" delves into the supernatural events reportedly occurring in a South Mumbai apartment. The narrative revolves around a family unwittingly entangled with a restless spirit, leading to a series of terrifying and unexplained occurrences.

3. Ragini MMS (2011): Drawing inspiration from real events, "Ragini MMS" mirrors the horrifying experiences of a couple in a rented house. Directed by Pawan Kripalani, the film artfully blends found footage with traditional storytelling, creating an atmosphere of suspense and terror.
   
   

4. 1920 (2008): Vikram Bhatt's "1920" is a period horror film inspired by supernatural occurrences during the British colonial era. The movie recounts a couple's haunting experiences with malevolent spirits in their newly acquired mansion, providing an eerie and atmospheric cinematic journey.

5. Phobia (2016): "Phobia," directed by Pavan Kirpalani, explores psychological horror inspired by true events. The film follows an agoraphobic artist who becomes haunted by mysterious occurrences, tapping into the fears that lurk within the human mind.

6. Pari (2018): Anushka Sharma's production venture, "Pari," is a supernatural horror film drawing inspiration from various mythological and folkloric elements. Directed by Prosit Roy, the film explores themes of demonic possession and dark rituals, delivering an unsettling experience.

7. Talaash (2012): Directed by Reema Kagti, "Talaash" combines suspense and supernatural elements in the gripping tale of a police officer investigating a mysterious accident. The film is loosely inspired by the reported haunting of Bombay's Poonam Chambers.

8. Raat (1992): Ram Gopal Varma's classic "Raat" draws inspiration from the eerie occurrences in a haunted house, narrating a family's terrifying night as they confront malevolent forces beyond their understanding.

9. Dobaara: See Your Evil (2017): Directed by Prawaal Raman, this psychological horror film is based on the real-life story of the Perron family's haunting experiences, also depicted in the Hollywood film "The Conjuring."

10. Bhool Bhulaiyaa (2007): Priyadarshan's "Bhool Bhulaiyaa" is a psychological horror-comedy inspired by the legend of the palace of King Ranjit Singh in Rajasthan. The film unravels the mystery of a supposedly haunted ancestral mansion and the psychological trauma it inflicts on its inhabitants.
    
    

Conclusion:

Bollywood's exploration of horror based on true stories adds authenticity and relatability to spine-chilling narratives. These films not only entertain but also tap into the rich tapestry of real-life supernatural events, leaving audiences questioning the boundary between fiction and reality. As we move forward, one can anticipate the continuation of this trend, providing viewers with more hair-raising experiences rooted in true stories.