This album is from 1981 and somehow involves famous Hindi music director Bappi Lahiri, who is said to have introduced disco to the Bollywood film industry. I think one of the vocalists is Sharon Prabhakar, who got her start in the industry with Lahiri. I read that Diwana Hai Ye Dil is a cover song, but don't know any details. The title track Chal Disco Chal is floating around, but I was drawn more to these two tracks. Recorded from the LP a while ago and I can't seem to find the album right now to get more info. It will turn up someday.
Download Diwana Hai Ye Dil
Download Maf Karo
Very Related: As I was flipping thru the bin I found Chal Disco Chal and Runa Laila's SuperRuna next to each other, obviously sold to the record store by the same person. SuperRuna also involved Bappi Lahiri.