In Pratiyogita Darpan, you can get current affairs in concise form with a lot of relevant articles and previous years’ solved papers from time-to-time both for Preliminary as well as Main Examination.
Let us make it clear that none of the magazine alone can help you crack the Civil Services Examination. It has a huge syllabus that incorporates subjects/topics from diverse disciplines so, you can certainly get a vague idea about some issues in magazines but, for content, you will have to depend upon standard text-books.
We would like to add that for an effective preparation for Civil Services Examination newspapers are the best resource as you need to update your information and being abreast with the latest is the need. Magazines strategically cover most of the important items that can help you revise and update.