Here are some good condition UPSC study material :

1) Polity by m. laxmikant latest edition
2) Bipin Chandra history book latest updated version

(Both books are absolutely new and no pen and pencil used)

3) Geography material - Atlas, text book and all India state map series.

4) Ethics book

(no. 3 and 4 are from reputed coaching institute)

5) NCERT revision notes

6) PSIR political science and international relations optional study material from IGNOU.

FIXED PRICE and No cod order.