dear i think geography is a high scoring and also an easy one as well.

as for as books are concerned i dont know about them because i havent studied it.

however in case of IR and International law, u cant opt both subjects. i will suggest u that u should select International law because its syllabus is very short and also an easy one as well.moreover it is high scoring as well as compared to IR.

whereas u must opt euro history and never go for Indo pak history. because it realy gives less marks.

regards.