Dahshat is a 1981 Bollywood

Bollywood

Bollywood is the informal term popularly used for the Hindi-language film industry based in Mumbai , Maharashtra, India. The term is often incorrectly used to refer to the whole of Indian cinema; it is only a part of the total Indian film industry, which includes other production centers producing...

 horror film

Horror film

Horror films seek to elicit a negative emotional reaction from viewers by playing on the audience's most primal fears. They often feature scenes that startle the viewer through the means of macabre and the supernatural, thus frequently overlapping with the fantasy and science fiction genres...

 directed by Shyam Ramsay

Shyam Ramsay

Shyam Ramsay is a Bollywood film director. He was one of the five Ramsay Brothers who were active in Indian cinema throughout 70s and 80s. Shyam Ramsay was considered the main artist and head of this group. They produced a number of horror movies such as Darwaza, Purana Mandir and Veerana...

 & Tulsi Ramsay.

The plot revolved around a mad scientist

Mad scientist

A mad scientist is a stock character of popular fiction, specifically science fiction. The mad scientist may be villainous or antagonistic, benign or neutral, and whether insane, eccentric, or simply bumbling, mad scientists often work with fictional technology in order to forward their schemes, if...

 who turns into a blood thirsty monster at night as result of an experiment that goes wrong when his wife injects him with a fatal chemical. The film featured Om Shivpuri

Om Shivpuri

Om Shivpuri was an Indian theatre actor-director and character actor in Hindi films.A National School of Drama, New Delhi alumni, Om Shivpuri became the first chief of the National School of Drama Repertory Company and one of its actors; he later founded an important theatre group of its era, in...

 as the Scientist & Nadira

Nadira (actress)

-References:* Rediff.com* -External links:* . Audio podcast by Eric Molinsky discussing Nadira and other Jewish women in Indian cinema...

 as the wife. It also featured Navin Nischol

Navin Nischol

Navin Nischol was an Indian actor. He made his debut with the Hindi film Sawan Bhadon in 1970.-Early life:...

, Sarika

Sarika

Sarika was born on 3 June 1962 into a Maharashtrian family in New Delhi, India, and became an acclaimed National Award winning Indian actress.-Career:...

, Narendranath, Rajindernath

Rajindernath

Rajendra Nath Malhotra was a comedian actor in Indian Hindi and Punjabi films.-Early life and family:His family was from Peshawar but settled in Jabalpur in Madhya Pradesh. He studied in college at Darbar College, Rewa where Arjun Singh and R.P...

, Chand Usmani, Kajal Kiran

Kajal Kiran

Kajal Kiran, also credited as Kaajal Kiran, is a former Bollywood starlet who shot to instant fame after being discovered and cast by Nasir Hussain in his blockbuster Hit Hum Kisi Se Kum Nahin ....

, Dev Kumar, Bharat Bhushan

Bharat Bhushan

Bharat Bhushan was an Indian bollywood actor, scriptwriter and producer, who is best remembered for playing Baiju Bawra in the 1952 film of the same name. He was born in Meerut, and brought up in Aligarh, Uttar Pradesh.-Personal Life:...

 & Jayshree T.

Jayshree T.

Born in Marathi family, Jayshree T is a Bollywood Actress/Dancer, who is still active in the bollywood movies and some Marathi movies.-Career:...

The Music was composed by Bappi Lahiri

Bappi Lahiri

Bappi Lahiri or Alokesh Lahiri , born 27 November 1952, is a music director in the Hindi film industry. He pioneered the use of disco music in Indian cinema and sang some of his own compositions. He was popular in the 1980s with films like Disco Dancer, Namak Halaal and Sharaabi among others.-Early...

 & it had pop songs sung by Bappi himself along with Asha Bhosle

Asha Bhosle

Asha Bhosle is an Indian singer. She is one of the best-known and most highly-regarded Hindi playback singers in India, although she has a wider repertoire. Bhosle's career started in 1943 and has spanned over six decades. She has done playback singing for over a thousand Bollywood movies...

 & Sulakshana Pandit

Sulakshana Pandit

Sulakshana Pratap Narain Pandit is a Filmfare Award winning Playback Singer & Actor.Her brothers are the composing duo Jatin Lalit and her younger sister is Vijeta Pandit who achieved fame with her debut movie Love Story. Her uncle is the accomplished classical vocalist Pandit...

.