Yar I wanted to opt it but owing to following reasons, went for pol sci
1) New subject takes alot of time and strategy, being a job person time nai hai
2) I know I screwed my paper 2 of pol sci last time along with strict paper checking by the examiner. I feel I can fetch good marks as I did in css-19
3) Pol sci is easy and fun (for me atleast) philosophy kay liye dimagh open kena hoga