I being an official of the police department realizes that all members did fantastic job, but there are some mistakes I want to clear here.
1. Constable is first stage and second is Head Constable and there is no any stage of C list constable and Asistant constable between it.
2. (SHO) Station House Officer is not a rank of police department, station can be SI, Inspector even DsP can be appointed as SHO. Station House officer is appointed by the concerned (DPO) District Police officer/ Town police Officer .
3. ASP BPS: 17 is commisioned Post, he is superior to DSP, after passing limited period(I think 3 years) they become SP.
regards
sfz