i hv travelled in b1 and b2 (two tkts) both rac and got confirmed later on 8.12.2011..the b2 bogie is not equipped with curtains and appears old one and b2 is good,but cooling in b2 is very confirtable.instead of pf 2 it arrived in pf 1 as the appron in pf 2 is under repair.reached mas with 1 hour later may be due to rain from nellore onwards to chennai.the pf at mas is full of parcels and no way to walk for the passengers. there was extra bogie (second class) loaded with full parcels