Study of photon dominated regions in IC 348

We present fine structure line of neutral carbon at 492 GHz ( 3 P 1 – 3 P 0 , hereafter [C I] 1–0) and 12 CO 4–3 KOSMA observations. This data has been combined with FCRAO 12 CO 1–0 and 13 CO 1–0 data. We have used these observations to understand the emission from the photon dominated regions (PRDs) in IC 348. We confirm the anti-correlation between N(C)/N(CO) and N(H 2 ) as seen in most Galactic PDRs (Mookerjea et al . 2006).