Emotion is a key element. Just like in 'Tumhare bina dil adhura, har din yeh dil kehta. (Without you, my heart is incomplete, this heart says every day.)' The strong feeling of incompleteness without the beloved is central. Another element is imagery. For example, when shayari describes the beloved as a 'chand' (moon) or 'sitaare' (stars), it creates a vivid image in the love story. Also, the flow of words. In a well - written Hindi shayari for love story, the words should flow smoothly like a gentle stream, making the expression of love more appealing.
Sure. A beautiful Hindi shayari love story could be like this: 'Tumse milne ki khushi, dil me hai base, har pal tera intezar, har din mera kaam. (The joy of meeting you is rooted in my heart, waiting for you every moment is my daily task.)' It simply expresses the deep longing and love one has for their beloved.
The main theme could be about the struggle for freedom or the fight against oppression. Since many novels with such titles often deal with characters facing difficult circumstances and striving for a better life.