Its very nice to see these EP covers. It helps recall the days when I was a kid, back in the late 1970s. When there were temple festivals in and around our area, the sound guys used to arrive with HMV calypso record players and a huge stack of these records. Dad used to take us out and together we used to watch these guys playing these records. The interesting fact is that people would gather around and make requests for certain songs to be played. Even in those days, I clearly remember that the operator would never repeat a song during the same half of the day. If someone asked for a repeat tune, he would say, "come back in the evening". This concept is still followed on TV where we request songs by dialling in. Once the song is played, it cannot be selected for replay, for that session.
I still recall vividly, the 2 most popular Malayalam records were Madanolsavam (a Kamal Hassan Starrer) and Manjil Virinja Pookal (a 45 rpm LP record). Also Hum Kisse Se Kum Nahi was very popular.