I'm not entirely sure as the name seems rather unique. It could potentially be a very personal or region - specific novel. Maybe it's about a character who is seen as essential to someone's every flaw, but without more context it's hard to say for certain.
You can also check in specialized story databases or folklore collections. Some online platforms focus on collecting and archiving various stories from different cultures. By searching in these places, there is a chance that you might find the full story of 'dar si jati hai sila'.
One possible theme could be self - expression. If'meri awaz' (my voice) is central to the story, it might be about a character finally being able to express themselves fully when they find 'roshni' (light).
I'm not familiar with the 'tu meri zaroorat hai' novel. You could try searching for it in specialized book databases, local libraries, or asking in book - related forums where enthusiasts might be aware of such a work.
The title 'meri zindagi hai tu' (You are my life) itself suggests a story centered around a very important person or relationship in the protagonist's life. This could be what makes it interesting.
I'm sorry, I'm not familiar with the specific story named'meri awaz ko mil gayi roshni'. It could be a story from a particular regional literature, a local folktale or something else. Maybe you can try to find more information from local libraries or relevant cultural institutions.