I have completed PGDM in finance. Which papers (in Paper-II) should I choose: commerce or management? Which books should I refer?

I have done PGDM (Services) from Jaipuria Inst. of Mgt. with a dual specialization in finance and marketing. What papers (in Paper-II) would be more suitable for me to select considering finance as major? Kindly guide and which books should I refer for the same? Can I apply for JRF (age 32 female)?