I'm sorry, but I'm not specifically familiar with a story named 'ek ishq ek junoon'. It could be a relatively niche or regional story. You might want to check local libraries, cultural centers or online forums dedicated to the relevant culture for the full story.
I'm sorry, I'm not familiar with the specific 'ek thi rani ek tha ravan' story. It could be a relatively unknown or regional story. Maybe it's about a queen and a demon - like character, but without more context, it's hard to tell the full story.
One of the main themes was love. Madhubala's love story was a central aspect of the show. Another theme was the pursuit of dreams. She was determined to make it big in Bollywood. Family was also a theme, as family expectations and relationships influenced her journey.
I'm sorry, I'm not very familiar with the specific story named 'ek haseena thi ek deewana tha'. It could be a story from a particular movie, book or regional folklore. Maybe it's about a beautiful woman (ek haseena) and a passionate lover (ek deewana). But without more context, it's hard to tell the full story.
A third possible theme could be about self - discovery. Through her encounters with the ravan, the rani may learn more about herself, her capabilities, and her place in the world. Also, there could be a theme of sacrifice, where she might have to give up something important in order to overcome the ravan or protect her people.
It could be that the 'haseena' has some sort of mystery around her. And the 'deewana' is drawn to this mystery as much as her beauty. The main plot would then be the deewana trying to unravel the mystery while also winning her heart.
I have no knowledge of this serial, so I can't summarize it. But generally, a serial story might involve characters' relationships, their dreams, and some challenges they face in the plot.