Hi Sarthak,

In UPSC(Union public Service Commission) , only the basic knowledge of biology is enough which you have studied till 12th and compulsory.

The syllabus will cover all the things in science stream.If you have the basic knowledge of the current biology updates and scenerio , you will be able to crack the prefilms easily.

For more information , kindly visit the official website of UPSC.

Best wishes!!!