When you think of a Bollywood horror movie, what comes to your mind? Is it a Ramsay film with a puraani haveli, Ramu kaka, creaking doors and ugly-as-hell monstrous creatures? The graphics and costumes are so bad, that they're funny, not scary.But while some movies have spoilt the reputation of Bollywood horror flicks, that doesn't mean that Bollywood has never produced any gems. Here's a list of 10 Bollywood movies that are so scary that you just cannot watch them alone.

1. Raat (1992)

Raat is considered to be one of the finest films RGV has made. It's a supernatural thriller that doesn't go over the top with the nuances of a horror film. The plot is set into motion when a kitten is killed and the leading lady is possessed with its spirit. After you watch this cult classic, you will never look at cats the same way.

2. 1920 (2008)

A royal deserted mansion, a mysterious caretaker, and a newly wed couple. This movie abounds in every cliche expected of a horror film but what sets it apart from the others is the sheer artistic finesse with which the frames have been done. 

3. Raaz (2002)

Inspired by the Michelle Pfeiffer starrer 'What Lies Beneath', Raaz was just the the beginning of a slew of horror films that Bipasha Basu was to sign later. Pfeiffer did a commendable job in the original. But our Bips matched her in every way.

4. Ragini MMS (2011)

Ragini MMS is inspired by the American supernatural horror 'Paranormal Activity' and is partly based on a real story. Unlike its sequel, this one did not have Sunny Leone, but still managed to draw the crowds to the theatres thanks to its edge-of-the-seat thrills. This sleeper hit can give you a few sleepless hours when you hit the bed at night.

5. 13 B (2009)

13 B comes packed to the rafters with spine-tingling chills and scares. It doesn't completely depend on a spooky background score or weird camera angles to deliver the chills. With a strong script and an ensemble cast that does its job to perfection, 13 B is definitely one movie you shouldn't miss.

6. Mahal (1949)

Considered as the first horror movie of Bollywood, Mahal deals with the subject of reincarnation. This one probably scared the shit out of your daddy as well your dada . Even with minimalistic effects this film has continued to haunt audiences for decades.

7. Bees Saal Baad (1962)

A mysterious woman walking around at midnight through a field crooning Kahin deep jale kahin dil spooked the nation so much that the film turned out to be the highest grosser in 1962. Loosely based on Sir Arthur Conan Doyle's 'The Hound Of Baskerville', Bees Saal Baad remains every bit haunting even after pachaas saal baad of its release.

8. Horror Story (2013)

A group of youngsters decide to spend the night at a haunted hotel. Things get convoluted and it's a scare fest thereon. There are some genuinely frightening scenes that will make you jump off your seat. Those looking for chills won't be disappointed at all.

9. Shaapit (2010)

The third installment in the Raaz trilogy, Shaapit is good enough to raise the hair on the back of your neck. Like every Vikram Bhatt film, the USP of this film lies in its treatment, keeping it stylishly eerie. By the end of it all, you might want to believe in curses and evil spirits.

10. Ek Thi Daayan (2013)

The thought of daayans existing in society is spooky in itself. Ek Thi Daayan is a brave attempt at trying something new. It is a cross between an out-and-out horror film and a creepy, paranormal thriller. The supernatural drama may seem unrealistic but the stylised treatment and the taut storyline makes up for it, not to mention Konkona Sen's eerie portrayal of a daayan. Spooky indeed!