First identify the topic

Later find.the related literature

Find the gaps

Than formulate conceptual models and hypothesis based on the gap and your topic

Initially these are to be done.

I agree with Sneha Chaurasiya about the steps. Additionally, you may need to refer to the template used by the journal you are targeting. You may also need to consider the genre of the article that you want to write since a genre has its structure to follow and linguistic features to consider carefully. My professor has always said, "read before write." That may be useful for us.

Dear Roshan Lamichhane,

Here is a sequence:

All scientific works are either opening something new, or continuing to study something already discovered, or closing a certain problem. First and last type articles are extremely rare. Most likely you found an interesting question being may be a small step forward. So that complete this step first, and then try to describe it in the most logical form within the frame that's outlined above. This way you do a right thing, while polishing your individual scientific style.