Dear student,

Business Economics includes financial , organizational and management related course while in UPSC Examination questions may be related to any field so any topic will be of use in this examination for sure, the basic objective of business economics is to teach an individual about the required analysis and decision making in the business related fields. Each and every topic you study will help you in UPSC for sure because students not only from Humanities but also from Commerce and Science streams have been passing with flying colors in the exam and securing top ranks , therefore study well, improve your analytical and overall aptitude and you will be performing great in Civil Services examination.

you may refer to the link below for preparation skills:

https://competition.careers360.com/articles/how-prepare-for-upsc-ias

ALL THE BEST!!!!

Hope this helps......