Authorship credit should be based only on substantial contributions

1. Conception and design or acquisition of data or analysis and interpretation of data.
2. Drafting the article or revising it critically for important intellectual content.
3. Final approval of the version to be published.

Conditions 1, 2, and 3 must be met. Participation solely in the acquisition of funding or the collection of data does not justify authorship. General supervision of the research group is not sufficient for authorship. Each contributor should have participated sufficiently in the work to take public responsibility for appropriate portions of the content. The order of naming the contributors should be based on the relative contribution of the contributor towards the study and writing the manuscript. Once submitted the order cannot be changed without the written consent of all the contributors.

Only those who have done substantial work in a particular field can write a review article. A short summary of the work done by the contributor(s) in the field of review should accompany the manuscript. The journal expects the contributors to give post-publication updates on the subject of review. The update should be brief, covering the advances in the field after the publication of an article and should be sent as a letter to the editor, as and when major development occurs in the field.