Accident Case - Section IPC 279 & 304A

My father met with accident and died due the opponent drove rashly and he was drunk. We have few query related to this issue, 1)How does we can know about whether charge sheet filed or not? 2)How to get a copy of charge sheet? 3)Since IPC section 279 & 304A is filed, who will be looking after the legal proceeding towards jail term for accuse? 4) Does PP involves in this case? If, then how to know who is the PP involved in this case? 5)If PP does not proceed properly is there any chance for accuse to escape from jail term or reduction of term period? 6)How to get compensation in this case? 7)Does PP help on to get compensation? If not can we arrange a separate advocate? 8)If PP fails to proceed properly in getting the jail term for the accuse can our advocate help to get the jail term for accuse and further compensation to us? 9)How much can we get a compensation in this case? My father age 64 and getting a pension of 25k/month? 10)Can we file a case in court for compensation before charge sheet is filed in court by police? 11)The accuse was drunk and it has been not mentioned in FIR, does it help affects the victim if not mentioned in FIR?