hey,

here is the JKPSC KAS prelims syllabus 2020

paper 1 general studies

1. general science

2. current national and international events , history of india

3. world geography

4. indian polity and economy

5. indian national movement and general mental ability

JKPSC KAS syllabus 2020 for mains exam

1. general engliish

2. essay in english

3. general studies 1

4. general studies 2

5. optional subjects  (two to be selected)

for more detailed syllabus kindly refer to the link

https://competition.careers360.com/articles/jkpsc-kas-syllabus

hope this helps!