You have to maintain the Central Excise Reigsters like
Finished Stock Register - Daily Production basis
Scrap Stock Register - Daily Production basis
Inputs/Consumables register -Daily basis
You will be executing B17 bond , So you will have to keep a register called procurement and Running bond Register.
Export perfomance report/Register e.t.c
You will have to file quarterly performance reports and Annual perfomance reports in your SEZ office.
The important thing is that you have to achieve +ve net foreign exchange at the end of five year block.
You have to keep monitoring the foreign exchange inflow and out flow.
for more details refer https://www.eouindia.gov.in/handbook_procedures.htm
Regards
Sunil Kumar
+919894459993