Bhool Bhulaiyaa 3 Full movie Download was officially announced in March 2023. Principal photography took place from March to September 2024 in Mumbai, Kolkata, Orchha, and Leh, with cinematography by Manu Anand. Bhool Bhulaiyaa 3 was theatrically released on 1 November 2024, coinciding with Diwali.
Ruhaan "Rooh Baba" Randhawa enjoys deceiving people by claiming to be a ghostbuster. Meera's uncle calls him to speak with Meera, who is supposedly possessed by a ghost. When Meera arrives, Ruhaan is terrified, believing her to be a real ghost. Her uncle captures his reaction on Meera's phone and blackmails Ruhan, threatening to post the video online if he doesn't accompany them to Rakht Ghat.
With no other option, Ruhaan agrees. Upon his arrival, everyone is shocked to see him because he looks exactly like Rajkumar Debendranath, a prince from 200 years ago. The royal family currently lives in the horse barn due to the presence of Manjulika's spirit in the palace.
The Rajpurohit warns everyone not to go near Manjulika's room, advising that it should only be opened on Durgashtami by a royal family member reborn to rid them of the ghost. Believing that Ruhaan is the reincarnation of Debendranath, everyone moves back to the palace.
According to a local myth, 200 years ago, Manjulika was a princess. The king had a son, Debendranath, with a servant. When he decided to name Debendranath as his heir, Manjulika killed him out of rage. In retaliation, the king burned Manjulika alive, and her vengeful spirit now haunts the palace, responsible for several deaths.
Meera calls in a restoration team to work on the palace so it can be sold. Mallika, the team leader, begins showing signs of possession. Ruhaan learns of the real ghost and plans to escape but realizes he needs to erase his video before leaving. While searching for it, he discovers Meera has secretly taken his photos, suggesting romantic feelings for him. She confirms this when confronted.
Ruhan decides to stay but soon learns that Pandit, Panditaayan, and Chhote Pandit are already living in Manjulika's room. They reveal they've been trying to scare everyone away so they could stay there in peace. The restoration team takes over the room and accidentally breaks a wall, uncovering a hidden passage leading to a room sealed with the Bhairava Kavach. The Rajpurohit, curious, decides to research more about the palace's history.
Desperate to sell the property, Raja Saab decides to break the Bhairava Kavach with Rooh Baba's help. Just as they open the door, the Rajpurohit arrives with news that the room belonged to Anjulika, Manjulika and Debendranath's elder sister. He reveals that the king 200 years ago had two daughters who despised each other.
Despite knowing the palace's haunted reputation, Mandira arrives as a prospective buyer to learn more about the estate. After she meets Mallika, strange events begin occurring. The Rajpurohit warns everyone to be cautious until Durgashtami, the day when Manjulika is expected to take her revenge.
Ruhan and Meera have several eerie encounters with both Mallika and Mandira, confused about which one is the real Manjulika. The Rajpurohit returns with sacred oil to destroy Manjulika's spirit, and the night before Durgashtami, they gather at the site where her body was burned 200 years ago. Ruhaan cleverly manages to exorcise the spirit that had possessed both Mallika and Mandira, learning that the ghost was actually Debendranath, who was killed 200 years ago for his love of dance and disdain for his male identity.

It is revealed that Anjulika and Manjulika conspired to have Debendranath killed to secure the throne. Once exposed to the king, he ordered his ministers to burn him alive. Following this, the king expelled both sisters from the kingdom. Debendranath's ghost then killed the king and his guards. The Rajpurohit of that era sealed Debendranath's spirit in the hidden room, secured by the Bhairava Kavach. It was Debendranath’s spirit causing the disturbances by possessing his sisters' reincarnations, Mallika and Mandira.
In the end, Ruhaan, Meera, Mallika, Mandira and Debendranath’s spirit share a heartfelt moment as Debendranath finally finds the peace he's longed for over two centuries.
In the mid-credit scene, it is revealed that Mandira is not the real buyer. She is actually ACP Rathore, an undercover cop, who has come to arrest Ruhaan for his frauds as the fake ghostbuster Rooh Baba.