Hello Aspirant  ,

You can choose any stream you want and have interest in it , it does not matter which stream you choose as there is no such requirement for UPSC CSE examination .

Some people might suggest you that having Arts stream in class 11 and 12 will help you but the advantage will not be much and you can get good marks with any stream .

It is very good that you decided to pursue UPSC in this early stage of your life as it will really help you in your preparation .

For more details about UPSC visit :

https://competition.careers360.com/exams/upsc-civil-services-exam

Hope this helps.