Post updated to add more info in blue font.
Rajesh Roshan - Sanata Theme from Sannata
Hemant Bhole - Sansani Khez Koi Baat from Sansani, vocals: Asha Bhosle, Hemant Bhosle
Bappi Lahiri - He Met Me In The Guest House from Guest House, vocals: Preeti Sagar used in Saboot
Bappi Lahiri - Meri Jaan from Dahshat, vocals: Sulakshana Pandit & Bappi Lahiri
Laxmikant Pyarelal - Aa Jaane Jaan from Intaqam, vocals: Lata Mangeshkar
Ratandeep Hemraj - Birha Ki Maari Koi from Shaitan Mujrim, vocals: Jyoti Sharma
Bappi Lahiri - Dance Music from Maut Ka Saaya, vocals: Anette Pinto
Sapan Jagmohan - Aji Kahan Gum Ho from Darwaza, vocals: Asha Bhosle
Laxmikant Pyarelal - Theme Music from Anita
Usha Kanna - Jeena Hai To Jee Bhar Hanslo from Hotel,
Marjaban Too Kuthe Part 1 - Rajesh Roshan from Sannata, vocals: Hemlata & Mahmood
Sapan Jagmohan - Sote Sote Adhi Rat from Siskeyan, vocals: Salma Agha
Hemant Bhole - Ab Kahan Jayenge Ham (Sad) from Sansani,
Sonik Omi - Main Theme From Andhera
Bappi Lahiri - Disco Title Music From Dahshat
Rajesh Roshan - Superman, Superman from Sannata, vocals: Alka Yagnik, Ursula, Udit Narayan
Khemchand Prakash - Dance Music from Mahal
Bappi Lahiri - Aafat from Maut Ka Saya, vocals: Anette Pinto & Bappi Lahiri
Laxmikant Pyarelel - Chalo Re Doli from Jaani Dushman (cover's inspiration), vocals: Rafi
Rajesh Roshan - Marjaban Too Kuthe Part 2 from Sannata, vocals: Hemlata & Mahmood
Nadeem & Shravan - Dekho Dekho Dekho Magar Pyar Se from Cheekh, vocals: Alka Yagnik
RD Burman - Bindya Tarse Kajra Barse from Phir Wahi Raat, vocals: Lata Mangeshkar
Hindi Horrocore: Focus Revealed
Tracks on the remix of Bollywood Bloodbath by Andy Votel
Hello Darling (Shoot When The Bell Rings) vocals:: Anette Pinto - Telephone - Rajesh Roshan
Saiyan Main Aayi Ghar Chhod Ke vocals: Hemlata Suresh Wadkar - Bhayanak - Usha Khanna
Hello Darling (Shoot When The Bell Rings) vocals: Anette Pinto - Telephone - Rajesh Roshan
Sansani Khez Koi Baat vocals: Asha Bhosle Hemant Bhosle - Sansani - Hemant Bhosle
Meri Jaan Kaho Haan vocals: Sulakshana Pandit Bappi Lahiri - Dahshat - Bappi Lahiri
He Met Me In The Guest House vocals: Preeti Sagar - Guest House - Bappi Lahiri
Aafat vocals: Anette Pinto Bappi Lahiri - Maut Ka Saya - Bappi Lahiri
Hum Jis Pe Marte Thay vocals: Alka Yagnik - Purana Mandir - Ajit Singh
Tere Jaisa Pyara Koi Nahin vocals: Usha Khanna - Hotel - Usha Khanna
Main Hoon Akeli Raat Jawan vocals: Asha Bhosle - Purana Mandir - Ajit Singh
Main Hoon Tujh Pe Sun Fida vocals: Asha Bhosle - Telephone - Rajesh Roshan
Disco Title Music - Dahshat - Bappi Lahiri
Birha Ki Maari Koi vocals: Jyoti Sharma - Shaitan Mujrim - Ratandeep - Hemraj
Saal Mubarak Ho vocals: Asha Bhosle - Telephone - Bappi Lahiri
Aji Kahan Gum Ho vocals: Asha Bhosle - Darwaza - Sapan - Jagmohan
Paise Ki Daulat Se Badhkar Pyar Ki Daulat Hoti Hai ?????? (if anyone knows, post a comment please)
Dekho Magar Pyar Se vocals: Alka Yagnik - Cheekh - Nadeem - Shravan
Sansani Khez Koi Baat vocals: Asha Bhosle Hemant Bhosle - Sansani - Hemant Bhosle